151521032 has 32 divisors (see below), whose sum is σ = 307200600. Its totient is φ = 69648384.

The previous prime is 151521023. The next prime is 151521037. The reversal of 151521032 is 230125151.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 129185956 + 22335076 = 11366^2 + 4726^2 .

It is a junction number, because it is equal to n+sod(n) for n = 151520995 and 151521013.

It is not an unprimeable number, because it can be changed into a prime (151521037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23894 + ... + 29562.

Almost surely, 2^151521032 is an apocalyptic number.

It is an amenable number.

151521032 is an abundant number, since it is smaller than the sum of its proper divisors (155679568).

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

151521032 is a wasteful number, since it uses less digits than its factorization.

151521032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5945 (or 5941 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 151521032 is about 12309.3879620394. The cubic root of 151521032 is about 533.1191789506.

Adding to 151521032 its reverse (230125151), we get a palindrome (381646183).

The spelling of 151521032 in words is "one hundred fifty-one million, five hundred twenty-one thousand, thirty-two".