42131357 has 8 divisors (see below), whose sum is σ = 43518816. Its totient is φ = 40762512.

The previous prime is 42131347. The next prime is 42131363. The reversal of 42131357 is 75313124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42131357 - 2¹⁴ = 42114973 is a prime.

It is a super-2 number, since 2×42131357² = 3550102485322898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42131347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23 + ... + 9179.

It is an arithmetic number, because the mean of its divisors is an integer number (5439852).

Almost surely, 2^42131357 is an apocalyptic number.

It is an amenable number.

42131357 is a deficient number, since it is larger than the sum of its proper divisors (1387459).

42131357 is a wasteful number, since it uses less digits than its factorization.

42131357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9307.

The product of its digits is 2520, while the sum is 26.

The square root of 42131357 is about 6490.8671993810. The cubic root of 42131357 is about 347.9646686507.

The spelling of 42131357 in words is "forty-two million, one hundred thirty-one thousand, three hundred fifty-seven".