42134534 has 16 divisors (see below), whose sum is σ = 72067968. Its totient is φ = 18302592.

The previous prime is 42134509. The next prime is 42134563. The reversal of 42134534 is 43543124.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47222 + ... + 48105.

It is an arithmetic number, because the mean of its divisors is an integer number (4504248).

Almost surely, 2^42134534 is an apocalyptic number.

42134534 is a deficient number, since it is larger than the sum of its proper divisors (29933434).

42134534 is a wasteful number, since it uses less digits than its factorization.

42134534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95359.

The product of its digits is 5760, while the sum is 26.

The square root of 42134534 is about 6491.1119232378. Note that the first 3 decimals coincide. The cubic root of 42134534 is about 347.9734147569.

Adding to 42134534 its reverse (43543124), we get a palindrome (85677658).

The spelling of 42134534 in words is "forty-two million, one hundred thirty-four thousand, five hundred thirty-four".