42070131 has 16 divisors (see below), whose sum is σ = 64337920. Its totient is φ = 27141480.

The previous prime is 42070117. The next prime is 42070159. The reversal of 42070131 is 13107024.

It is not a de Polignac number, because 42070131 - 2⁵ = 42070099 is a prime.

It is a super-2 number, since 2×42070131² = 3539791844714322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42070031) 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, 24295 + ... + 25968.

It is an arithmetic number, because the mean of its divisors is an integer number (4021120).

Almost surely, 2^42070131 is an apocalyptic number.

42070131 is a deficient number, since it is larger than the sum of its proper divisors (22267789).

42070131 is a wasteful number, since it uses less digits than its factorization.

42070131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50303 (or 50297 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 42070131 is about 6486.1491657223. The cubic root of 42070131 is about 347.7960308895.

Adding to 42070131 its reverse (13107024), we get a palindrome (55177155).

The spelling of 42070131 in words is "forty-two million, seventy thousand, one hundred thirty-one".