151474321 has 4 divisors (see below), whose sum is σ = 151592944. Its totient is φ = 151355700.

The previous prime is 151474319. The next prime is 151474333. The reversal of 151474321 is 123474151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151474321 - 2¹ = 151474319 is a prime.

It is a super-2 number, since 2×151474321² = 45888939844822082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151474321.

It is not an unprimeable number, because it can be changed into a prime (151474381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57375 + ... + 59956.

It is an arithmetic number, because the mean of its divisors is an integer number (37898236).

Almost surely, 2^151474321 is an apocalyptic number.

It is an amenable number.

151474321 is a deficient number, since it is larger than the sum of its proper divisors (118623).

151474321 is a wasteful number, since it uses less digits than its factorization.

151474321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118622.

The product of its digits is 3360, while the sum is 28.

The square root of 151474321 is about 12307.4904428157. The cubic root of 151474321 is about 533.0643898804.

The spelling of 151474321 in words is "one hundred fifty-one million, four hundred seventy-four thousand, three hundred twenty-one".