152971402 has 4 divisors (see below), whose sum is σ = 229457106. Its totient is φ = 76485700.

The previous prime is 152971397. The next prime is 152971411. The reversal of 152971402 is 204179251.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 146676321 + 6295081 = 12111^2 + 2509^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38242849 + ... + 38242852.

Almost surely, 2^152971402 is an apocalyptic number.

152971402 is a deficient number, since it is larger than the sum of its proper divisors (76485704).

152971402 is an equidigital number, since it uses as much as digits as its factorization.

152971402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76485703.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 152971402 is about 12368.1608171951. The cubic root of 152971402 is about 534.8147983293.

The spelling of 152971402 in words is "one hundred fifty-two million, nine hundred seventy-one thousand, four hundred two".