64133235 has 32 divisors (see below), whose sum is σ = 115637760. Its totient is φ = 33717600.

The previous prime is 64133219. The next prime is 64133257. The reversal of 64133235 is 53233146.

It is a happy number.

It is not a de Polignac number, because 64133235 - 2⁴ = 64133219 is a prime.

It is a super-2 number, since 2×64133235² = 8226143663130450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 64133199 and 64133208.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6240 + ... + 12930.

It is an arithmetic number, because the mean of its divisors is an integer number (3613680).

Almost surely, 2^64133235 is an apocalyptic number.

64133235 is a deficient number, since it is larger than the sum of its proper divisors (51504525).

64133235 is a wasteful number, since it uses less digits than its factorization.

64133235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6776 (or 6770 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 64133235 is about 8008.3228581270. The cubic root of 64133235 is about 400.2773805223.

The spelling of 64133235 in words is "sixty-four million, one hundred thirty-three thousand, two hundred thirty-five".