65315415 has 16 divisors (see below), whose sum is σ = 114005376. Its totient is φ = 31668000.

The previous prime is 65315413. The next prime is 65315417. The reversal of 65315415 is 51451356.

It is an interprime number because it is at equal distance from previous prime (65315413) and next prime (65315417).

It is not a de Polignac number, because 65315415 - 2¹ = 65315413 is a prime.

It is a super-2 number, since 2×65315415² = 8532206873244450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65315413) 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, 197761 + ... + 198090.

It is an arithmetic number, because the mean of its divisors is an integer number (7125336).

Almost surely, 2^65315415 is an apocalyptic number.

65315415 is a deficient number, since it is larger than the sum of its proper divisors (48689961).

65315415 is a wasteful number, since it uses less digits than its factorization.

65315415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395870.

The product of its digits is 9000, while the sum is 30.

The square root of 65315415 is about 8081.7952832276. The cubic root of 65315415 is about 402.7218842703.

The spelling of 65315415 in words is "sixty-five million, three hundred fifteen thousand, four hundred fifteen".