65151233 has 24 divisors (see below), whose sum is σ = 78369984. Its totient is φ = 53978400.

The previous prime is 65151211. The next prime is 65151271. The reversal of 65151233 is 33215156.

It is not a de Polignac number, because 65151233 - 2⁶ = 65151169 is a prime.

It is a super-2 number, since 2×65151233² = 8489366322840578, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65151833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212066 + ... + 212372.

It is an arithmetic number, because the mean of its divisors is an integer number (3265416).

Almost surely, 2^65151233 is an apocalyptic number.

It is an amenable number.

65151233 is a deficient number, since it is larger than the sum of its proper divisors (13218751).

65151233 is a wasteful number, since it uses less digits than its factorization.

65151233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453 (or 446 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 65151233 is about 8071.6313716621. The cubic root of 65151233 is about 402.3841632635.

Adding to 65151233 its reverse (33215156), we get a palindrome (98366389).

The spelling of 65151233 in words is "sixty-five million, one hundred fifty-one thousand, two hundred thirty-three".