65238147 has 12 divisors (see below), whose sum is σ = 101481744. Its totient is φ = 40146480.

The previous prime is 65238133. The next prime is 65238169. The reversal of 65238147 is 74183256.

It is not a de Polignac number, because 65238147 - 2¹¹ = 65236099 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (65238347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 278679 + ... + 278912.

It is an arithmetic number, because the mean of its divisors is an integer number (8456812).

Almost surely, 2^65238147 is an apocalyptic number.

65238147 is a deficient number, since it is larger than the sum of its proper divisors (36243597).

65238147 is a wasteful number, since it uses less digits than its factorization.

65238147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557610 (or 557607 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 65238147 is about 8077.0134950983. The cubic root of 65238147 is about 402.5630152229.

The spelling of 65238147 in words is "sixty-five million, two hundred thirty-eight thousand, one hundred forty-seven".