64151493 has 16 divisors (see below), whose sum is σ = 100909056. Its totient is φ = 35475120.

The previous prime is 64151491. The next prime is 64151497. The reversal of 64151493 is 39415146.

It is not a de Polignac number, because 64151493 - 2¹ = 64151491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64151491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48621 + ... + 49922.

It is an arithmetic number, because the mean of its divisors is an integer number (6306816).

Almost surely, 2^64151493 is an apocalyptic number.

It is an amenable number.

64151493 is a deficient number, since it is larger than the sum of its proper divisors (36757563).

64151493 is a wasteful number, since it uses less digits than its factorization.

64151493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98584.

The product of its digits is 12960, while the sum is 33.

The square root of 64151493 is about 8009.4627160628. The cubic root of 64151493 is about 400.3153617188.

The spelling of 64151493 in words is "sixty-four million, one hundred fifty-one thousand, four hundred ninety-three".