151232004 has 144 divisors (see below), whose sum is σ = 482751360. Its totient is φ = 38776320.

The previous prime is 151231999. The next prime is 151232009. The reversal of 151232004 is 400232151.

It is an interprime number because it is at equal distance from previous prime (151231999) and next prime (151232009).

It is a super-2 number, since 2×151232004² = 45742238067712032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151232009) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 246402 + ... + 247014.

It is an arithmetic number, because the mean of its divisors is an integer number (3352440).

Almost surely, 2^151232004 is an apocalyptic number.

151232004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151232004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241375680).

151232004 is an abundant number, since it is smaller than the sum of its proper divisors (331519356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

151232004 is a wasteful number, since it uses less digits than its factorization.

151232004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 725 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 151232004 is about 12297.6422130423. The cubic root of 151232004 is about 532.7799863299.

Adding to 151232004 its reverse (400232151), we get a palindrome (551464155).

The spelling of 151232004 in words is "one hundred fifty-one million, two hundred thirty-two thousand, four".