42587156 has 6 divisors (see below), whose sum is σ = 74527530. Its totient is φ = 21293576.

The previous prime is 42587147. The next prime is 42587161. The reversal of 42587156 is 65178524.

It can be written as a sum of positive squares in only one way, i.e., 25908100 + 16679056 = 5090^2 + 4084^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5323391 + ... + 5323398.

It is an arithmetic number, because the mean of its divisors is an integer number (12421255).

Almost surely, 2^42587156 is an apocalyptic number.

It is an amenable number.

42587156 is a deficient number, since it is larger than the sum of its proper divisors (31940374).

42587156 is a wasteful number, since it uses less digits than its factorization.

42587156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10646793 (or 10646791 counting only the distinct ones).

The product of its digits is 67200, while the sum is 38.

The square root of 42587156 is about 6525.8835417130. The cubic root of 42587156 is about 349.2149916565.

The spelling of 42587156 in words is "forty-two million, five hundred eighty-seven thousand, one hundred fifty-six".