151464321 has 6 divisors (see below), whose sum is σ = 218781810. Its totient is φ = 100976208.

The previous prime is 151464319. The next prime is 151464343. The reversal of 151464321 is 123464151.

It is a happy number.

151464321 is a `hidden beast` number, since 1 + 5 + 14 + 643 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 121881600 + 29582721 = 11040^2 + 5439^2 .

It is not a de Polignac number, because 151464321 - 2¹ = 151464319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (151464121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8414676 + ... + 8414693.

It is an arithmetic number, because the mean of its divisors is an integer number (36463635).

Almost surely, 2^151464321 is an apocalyptic number.

It is an amenable number.

151464321 is a deficient number, since it is larger than the sum of its proper divisors (67317489).

151464321 is a wasteful number, since it uses less digits than its factorization.

151464321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16829375 (or 16829372 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 151464321 is about 12307.0841794472. The cubic root of 151464321 is about 533.0526590445.

The spelling of 151464321 in words is "one hundred fifty-one million, four hundred sixty-four thousand, three hundred twenty-one".