64134457 has 8 divisors (see below), whose sum is σ = 67890240. Its totient is φ = 60481680.

The previous prime is 64134451. The next prime is 64134463. The reversal of 64134457 is 75443146.

It is an interprime number because it is at equal distance from previous prime (64134451) and next prime (64134463).

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 64134457 - 2¹⁵ = 64101689 is a prime.

It is a super-2 number, since 2×64134457² = 8226457149369698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64134451) 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, 24469 + ... + 26962.

It is an arithmetic number, because the mean of its divisors is an integer number (8486280).

Almost surely, 2^64134457 is an apocalyptic number.

It is an amenable number.

64134457 is a deficient number, since it is larger than the sum of its proper divisors (3755783).

64134457 is a wasteful number, since it uses less digits than its factorization.

64134457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51503.

The product of its digits is 40320, while the sum is 34.

The square root of 64134457 is about 8008.3991533889. The cubic root of 64134457 is about 400.2799228124.

The spelling of 64134457 in words is "sixty-four million, one hundred thirty-four thousand, four hundred fifty-seven".