65391245 has 16 divisors (see below), whose sum is σ = 81269760. Its totient is φ = 50510160.

The previous prime is 65391239. The next prime is 65391251. The reversal of 65391245 is 54219356.

It is an interprime number because it is at equal distance from previous prime (65391239) and next prime (65391251).

It is not a de Polignac number, because 65391245 - 2¹² = 65387149 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148736 + ... + 149174.

It is an arithmetic number, because the mean of its divisors is an integer number (5079360).

Almost surely, 2^65391245 is an apocalyptic number.

It is an amenable number.

65391245 is a deficient number, since it is larger than the sum of its proper divisors (15878515).

65391245 is an frugal number, since it uses more digits than its factorization.

65391245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537 (or 475 counting only the distinct ones).

The product of its digits is 32400, while the sum is 35.

The square root of 65391245 is about 8086.4853304758. The cubic root of 65391245 is about 402.8776749052.

The spelling of 65391245 in words is "sixty-five million, three hundred ninety-one thousand, two hundred forty-five".