42719131 has 24 divisors (see below), whose sum is σ = 53944800. Its totient is φ = 33530112.

The previous prime is 42719069. The next prime is 42719137. The reversal of 42719131 is 13191724.

It is not a de Polignac number, because 42719131 - 2⁷ = 42719003 is a prime.

It is a super-2 number, since 2×42719131² = 3649848306790322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42719131.

It is not an unprimeable number, because it can be changed into a prime (42719137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126595 + ... + 126931.

It is an arithmetic number, because the mean of its divisors is an integer number (2247700).

Almost surely, 2^42719131 is an apocalyptic number.

42719131 is a deficient number, since it is larger than the sum of its proper divisors (11225669).

42719131 is a wasteful number, since it uses less digits than its factorization.

42719131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563 (or 556 counting only the distinct ones).

The product of its digits is 1512, while the sum is 28.

The square root of 42719131 is about 6535.9873775888. The cubic root of 42719131 is about 349.5753516573.

The spelling of 42719131 in words is "forty-two million, seven hundred nineteen thousand, one hundred thirty-one".