64012031 has 4 divisors (see below), whose sum is σ = 64172064. Its totient is φ = 63852000.

The previous prime is 64012009. The next prime is 64012033. The reversal of 64012031 is 13021046.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13021046 = 2 ⋅6510523.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64012031 is a prime.

It is a super-2 number, since 2×64012031² = 8195080225489922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64012033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79415 + ... + 80216.

It is an arithmetic number, because the mean of its divisors is an integer number (16043016).

Almost surely, 2^64012031 is an apocalyptic number.

64012031 is a deficient number, since it is larger than the sum of its proper divisors (160033).

64012031 is a wasteful number, since it uses less digits than its factorization.

64012031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160032.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 64012031 is about 8000.7519021652. The cubic root of 64012031 is about 400.0250630129.

Adding to 64012031 its reverse (13021046), we get a palindrome (77033077).

The spelling of 64012031 in words is "sixty-four million, twelve thousand, thirty-one".