42315087 has 16 divisors (see below), whose sum is σ = 59185152. Its totient is φ = 26860320.

The previous prime is 42315083. The next prime is 42315103. The reversal of 42315087 is 78051324.

It is not a de Polignac number, because 42315087 - 2² = 42315083 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42315083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1162 + ... + 9272.

It is an arithmetic number, because the mean of its divisors is an integer number (3699072).

Almost surely, 2^42315087 is an apocalyptic number.

42315087 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42315087 is a deficient number, since it is larger than the sum of its proper divisors (16870065).

42315087 is a wasteful number, since it uses less digits than its factorization.

42315087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8198.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 42315087 is about 6505.0047655632. The cubic root of 42315087 is about 348.4697464589.

The spelling of 42315087 in words is "forty-two million, three hundred fifteen thousand, eighty-seven".