65112987 has 8 divisors (see below), whose sum is σ = 86871040. Its totient is φ = 43381800.

The previous prime is 65112979. The next prime is 65112997. The reversal of 65112987 is 78921156.

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

It is not a de Polignac number, because 65112987 - 2³ = 65112979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65112947) 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, 139 + ... + 11412.

It is an arithmetic number, because the mean of its divisors is an integer number (10858880).

Almost surely, 2^65112987 is an apocalyptic number.

65112987 is a deficient number, since it is larger than the sum of its proper divisors (21758053).

65112987 is a wasteful number, since it uses less digits than its factorization.

65112987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13433.

The product of its digits is 30240, while the sum is 39.

The square root of 65112987 is about 8069.2618621532. The cubic root of 65112987 is about 402.3054101001.

The spelling of 65112987 in words is "sixty-five million, one hundred twelve thousand, nine hundred eighty-seven".