64140926 has 4 divisors (see below), whose sum is σ = 96211392. Its totient is φ = 32070462.

The previous prime is 64140917. The next prime is 64140929. The reversal of 64140926 is 62904146.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×64140926² = 8228116776274952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64140892 and 64140901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64140929) 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 as a sum of consecutive naturals, namely, 16035230 + ... + 16035233.

It is an arithmetic number, because the mean of its divisors is an integer number (24052848).

Almost surely, 2^64140926 is an apocalyptic number.

64140926 is a deficient number, since it is larger than the sum of its proper divisors (32070466).

64140926 is a wasteful number, since it uses less digits than its factorization.

64140926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32070465.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 64140926 is about 8008.8030316646. The cubic root of 64140926 is about 400.2933806003.

The spelling of 64140926 in words is "sixty-four million, one hundred forty thousand, nine hundred twenty-six".