64542313 has 8 divisors (see below), whose sum is σ = 72838080. Its totient is φ = 56651280.

The previous prime is 64542311. The next prime is 64542329. The reversal of 64542313 is 31324546.

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

It is a cyclic number.

It is not a de Polignac number, because 64542313 - 2¹ = 64542311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64542311) 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, 100845 + ... + 101482.

It is an arithmetic number, because the mean of its divisors is an integer number (9104760).

Almost surely, 2^64542313 is an apocalyptic number.

It is an amenable number.

64542313 is a deficient number, since it is larger than the sum of its proper divisors (8295767).

64542313 is a wasteful number, since it uses less digits than its factorization.

64542313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202367.

The product of its digits is 8640, while the sum is 28.

The square root of 64542313 is about 8033.8230625276. The cubic root of 64542313 is about 401.1266424626.

Adding to 64542313 its reverse (31324546), we get a palindrome (95866859).

The spelling of 64542313 in words is "sixty-four million, five hundred forty-two thousand, three hundred thirteen".