151521492 has 12 divisors (see below), whose sum is σ = 353550176. Its totient is φ = 50507160.

The previous prime is 151521481. The next prime is 151521509. The reversal of 151521492 is 294125151.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6313384 + ... + 6313407.

Almost surely, 2^151521492 is an apocalyptic number.

151521492 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

151521492 is an abundant number, since it is smaller than the sum of its proper divisors (202028684).

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

151521492 is a wasteful number, since it uses less digits than its factorization.

151521492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12626798 (or 12626796 counting only the distinct ones).

The product of its digits is 3600, while the sum is 30.

The square root of 151521492 is about 12309.4066469509. The cubic root of 151521492 is about 533.1197184458.

The spelling of 151521492 in words is "one hundred fifty-one million, five hundred twenty-one thousand, four hundred ninety-two".