64142575 has 48 divisors (see below), whose sum is σ = 97136640. Its totient is φ = 41040000.

The previous prime is 64142557. The next prime is 64142587. The reversal of 64142575 is 57524146.

It is not a de Polignac number, because 64142575 - 2¹⁹ = 63618287 is a prime.

It is a super-2 number, since 2×64142575² = 8228539855261250, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 64142575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 335730 + ... + 335920.

It is an arithmetic number, because the mean of its divisors is an integer number (2023680).

Almost surely, 2^64142575 is an apocalyptic number.

64142575 is a deficient number, since it is larger than the sum of its proper divisors (32994065).

64142575 is a wasteful number, since it uses less digits than its factorization.

64142575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 323 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 64142575 is about 8008.9059802198. The cubic root of 64142575 is about 400.2968109537.

The spelling of 64142575 in words is "sixty-four million, one hundred forty-two thousand, five hundred seventy-five".