87142465 has 16 divisors (see below), whose sum is σ = 108564480. Its totient is φ = 67101120.

The previous prime is 87142463. The next prime is 87142483. The reversal of 87142465 is 56424178.

It is not a de Polignac number, because 87142465 - 2¹ = 87142463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87142463) 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, 11296 + ... + 17374.

It is an arithmetic number, because the mean of its divisors is an integer number (6785280).

Almost surely, 2^87142465 is an apocalyptic number.

It is an amenable number.

87142465 is a deficient number, since it is larger than the sum of its proper divisors (21422015).

87142465 is a wasteful number, since it uses less digits than its factorization.

87142465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192.

The product of its digits is 53760, while the sum is 37.

The square root of 87142465 is about 9335.0128548385. The cubic root of 87142465 is about 443.3464958624.

The spelling of 87142465 in words is "eighty-seven million, one hundred forty-two thousand, four hundred sixty-five".