42136564 has 12 divisors (see below), whose sum is σ = 76117888. Its totient is φ = 20388600.

The previous prime is 42136559. The next prime is 42136573. The reversal of 42136564 is 46563124.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 169782 + ... + 170029.

Almost surely, 2^42136564 is an apocalyptic number.

It is an amenable number.

42136564 is a deficient number, since it is larger than the sum of its proper divisors (33981324).

42136564 is a wasteful number, since it uses less digits than its factorization.

42136564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339846 (or 339844 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 42136564 is about 6491.2682890172. The cubic root of 42136564 is about 347.9790030050.

Adding to 42136564 its reverse (46563124), we get a palindrome (88699688).

The spelling of 42136564 in words is "forty-two million, one hundred thirty-six thousand, five hundred sixty-four".