151531912 has 64 divisors (see below), whose sum is σ = 345888000. Its totient is φ = 62118672.

The previous prime is 151531907. The next prime is 151531927. The reversal of 151531912 is 219135151.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6588333 + ... + 6588355.

It is an arithmetic number, because the mean of its divisors is an integer number (5404500).

Almost surely, 2^151531912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 151531912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172944000).

151531912 is an abundant number, since it is smaller than the sum of its proper divisors (194356088).

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

151531912 is an frugal number, since it uses more digits than its factorization.

151531912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 32 counting only the distinct ones).

The product of its digits is 1350, while the sum is 28.

The square root of 151531912 is about 12309.8298932195. The cubic root of 151531912 is about 533.1319388907.

The spelling of 151531912 in words is "one hundred fifty-one million, five hundred thirty-one thousand, nine hundred twelve".