152566997 has 4 divisors (see below), whose sum is σ = 166436736. Its totient is φ = 138697260.

The previous prime is 152566961. The next prime is 152567003. The reversal of 152566997 is 799665251.

It is a happy number.

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 a de Polignac number, because none of the positive numbers 2^k-152566997 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 (152566937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6934853 + ... + 6934874.

It is an arithmetic number, because the mean of its divisors is an integer number (41609184).

Almost surely, 2^152566997 is an apocalyptic number.

It is an amenable number.

152566997 is a deficient number, since it is larger than the sum of its proper divisors (13869739).

152566997 is a wasteful number, since it uses less digits than its factorization.

152566997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13869738.

The product of its digits is 1020600, while the sum is 50.

The square root of 152566997 is about 12351.8013666024. The cubic root of 152566997 is about 534.3430921842.

The spelling of 152566997 in words is "one hundred fifty-two million, five hundred sixty-six thousand, nine hundred ninety-seven".