64538151 has 8 divisors (see below), whose sum is σ = 86257920. Its totient is φ = 42921912.

The previous prime is 64538129. The next prime is 64538167. The reversal of 64538151 is 15183546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64538151 - 2⁵ = 64538119 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64538651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24415 + ... + 26928.

It is an arithmetic number, because the mean of its divisors is an integer number (10782240).

Almost surely, 2^64538151 is an apocalyptic number.

64538151 is a deficient number, since it is larger than the sum of its proper divisors (21719769).

64538151 is a wasteful number, since it uses less digits than its factorization.

64538151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51765.

The product of its digits is 14400, while the sum is 33.

The square root of 64538151 is about 8033.5640284994. The cubic root of 64538151 is about 401.1180200830.

The spelling of 64538151 in words is "sixty-four million, five hundred thirty-eight thousand, one hundred fifty-one".