151332240 has 160 divisors (see below), whose sum is σ = 485968896. Its totient is φ = 38940160.

The previous prime is 151332211. The next prime is 151332241. The reversal of 151332240 is 42233151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151332241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1414267 + ... + 1414373.

Almost surely, 2^151332240 is an apocalyptic number.

151332240 is a gapful number since it is divisible by the number (10) 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 151332240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242984448).

151332240 is an abundant number, since it is smaller than the sum of its proper divisors (334636656).

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

151332240 is a wasteful number, since it uses less digits than its factorization.

151332240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 151332240 is about 12301.7169533362. The cubic root of 151332240 is about 532.8976685203.

Adding to 151332240 its reverse (42233151), we get a palindrome (193565391).

The spelling of 151332240 in words is "one hundred fifty-one million, three hundred thirty-two thousand, two hundred forty".