151304640 has 84 divisors (see below), whose sum is σ = 481605336. Its totient is φ = 40246272.

The previous prime is 151304639. The next prime is 151304653. The reversal of 151304640 is 46403151.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 151304640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 380922 + ... + 381318.

Almost surely, 2^151304640 is an apocalyptic number.

151304640 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 151304640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (240802668).

151304640 is an abundant number, since it is smaller than the sum of its proper divisors (330300696).

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

151304640 is an frugal number, since it uses more digits than its factorization.

151304640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 814 (or 407 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 151304640 is about 12300.5951075548. The cubic root of 151304640 is about 532.8652698944.

Adding to 151304640 its reverse (46403151), we get a palindrome (197707791).

The spelling of 151304640 in words is "one hundred fifty-one million, three hundred four thousand, six hundred forty".