64152091 has 4 divisors (see below), whose sum is σ = 64168384. Its totient is φ = 64135800.

The previous prime is 64152079. The next prime is 64152107. The reversal of 64152091 is 19025146.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 64152091 - 2⁷ = 64151963 is a prime.

It is the 8010-th Hogben number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64152041) by changing a digit.

It is a nontrivial repunit in base 8009.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1846 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (16042096).

Almost surely, 2^64152091 is an apocalyptic number.

64152091 is a deficient number, since it is larger than the sum of its proper divisors (16293).

64152091 is an equidigital number, since it uses as much as digits as its factorization.

64152091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16292.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 64152091 is about 8009.5000468194. The cubic root of 64152091 is about 400.3166055861.

The spelling of 64152091 in words is "sixty-four million, one hundred fifty-two thousand, ninety-one".