64140014 has 8 divisors (see below), whose sum is σ = 101869488. Its totient is φ = 30183520.

The previous prime is 64139987. The next prime is 64140019. The reversal of 64140014 is 41004146.

It is a happy number.

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

It is a super-2 number, since 2×64140014² = 8227882791840392, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64140019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943202 + ... + 943269.

It is an arithmetic number, because the mean of its divisors is an integer number (12733686).

Almost surely, 2^64140014 is an apocalyptic number.

64140014 is a deficient number, since it is larger than the sum of its proper divisors (37729474).

64140014 is a wasteful number, since it uses less digits than its factorization.

64140014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1886490.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 64140014 is about 8008.7460941149. The cubic root of 64140014 is about 400.2914833753.

The spelling of 64140014 in words is "sixty-four million, one hundred forty thousand, fourteen".