152064421 has 8 divisors (see below), whose sum is σ = 154454040. Its totient is φ = 149690112.

The previous prime is 152064401. The next prime is 152064427. The reversal of 152064421 is 124460251.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11902500 + 140161921 = 3450^2 + 11839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 152064421 - 2¹¹ = 152062373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (152064427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17071 + ... + 24403.

It is an arithmetic number, because the mean of its divisors is an integer number (19306755).

Almost surely, 2^152064421 is an apocalyptic number.

It is an amenable number.

152064421 is a deficient number, since it is larger than the sum of its proper divisors (2389619).

152064421 is an equidigital number, since it uses as much as digits as its factorization.

152064421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7655.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 152064421 is about 12331.4403457179. The cubic root of 152064421 is about 533.7557143159.

The spelling of 152064421 in words is "one hundred fifty-two million, sixty-four thousand, four hundred twenty-one".