64120713 has 8 divisors (see below), whose sum is σ = 86293728. Its totient is φ = 42347424.

The previous prime is 64120691. The next prime is 64120717. The reversal of 64120713 is 31702146.

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

It is not a de Polignac number, because 64120713 - 2⁸ = 64120457 is a prime.

It is a super-2 number, since 2×64120713² = 8222931671256738, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64120717) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99556 + ... + 100197.

It is an arithmetic number, because the mean of its divisors is an integer number (10786716).

Almost surely, 2^64120713 is an apocalyptic number.

It is an amenable number.

64120713 is a deficient number, since it is larger than the sum of its proper divisors (22173015).

64120713 is a wasteful number, since it uses less digits than its factorization.

64120713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199863.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 64120713 is about 8007.5410083246. The cubic root of 64120713 is about 400.2513274699.

Adding to 64120713 its reverse (31702146), we get a palindrome (95822859).

The spelling of 64120713 in words is "sixty-four million, one hundred twenty thousand, seven hundred thirteen".