87152569 has 16 divisors (see below), whose sum is σ = 103403520. Its totient is φ = 71870400.

The previous prime is 87152567. The next prime is 87152587. The reversal of 87152569 is 96525178.

It is not a de Polignac number, because 87152569 - 2¹ = 87152567 is a prime.

It is a super-2 number, since 2×87152569² = 15191140566599522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87152561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75144 + ... + 76294.

It is an arithmetic number, because the mean of its divisors is an integer number (6462720).

Almost surely, 2^87152569 is an apocalyptic number.

It is an amenable number.

87152569 is a deficient number, since it is larger than the sum of its proper divisors (16250951).

87152569 is a wasteful number, since it uses less digits than its factorization.

87152569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1560.

The product of its digits is 151200, while the sum is 43.

The square root of 87152569 is about 9335.5540274801. The cubic root of 87152569 is about 443.3636302559.

The spelling of 87152569 in words is "eighty-seven million, one hundred fifty-two thousand, five hundred sixty-nine".