65233149 has 16 divisors (see below), whose sum is σ = 87966720. Its totient is φ = 42997680.

The previous prime is 65233127. The next prime is 65233159. The reversal of 65233149 is 94133256.

It is a de Polignac number, because none of the positive numbers 2^k-65233149 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65233159) 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, 177564 + ... + 177930.

It is an arithmetic number, because the mean of its divisors is an integer number (5497920).

Almost surely, 2^65233149 is an apocalyptic number.

It is an amenable number.

65233149 is a deficient number, since it is larger than the sum of its proper divisors (22733571).

65233149 is a wasteful number, since it uses less digits than its factorization.

65233149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880.

The product of its digits is 19440, while the sum is 33.

The square root of 65233149 is about 8076.7040926358. The cubic root of 65233149 is about 402.5527346257.

The spelling of 65233149 in words is "sixty-five million, two hundred thirty-three thousand, one hundred forty-nine".