42698131 has 4 divisors (see below), whose sum is σ = 48797872. Its totient is φ = 36598392.

The previous prime is 42698113. The next prime is 42698147. The reversal of 42698131 is 13189624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42698131 - 2¹⁹ = 42173843 is a prime.

It is a super-2 number, since 2×42698131² = 3646260781786322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42698431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3049860 + ... + 3049873.

It is an arithmetic number, because the mean of its divisors is an integer number (12199468).

Almost surely, 2^42698131 is an apocalyptic number.

42698131 is a deficient number, since it is larger than the sum of its proper divisors (6099741).

42698131 is an equidigital number, since it uses as much as digits as its factorization.

42698131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6099740.

The product of its digits is 10368, while the sum is 34.

The square root of 42698131 is about 6534.3806898588. The cubic root of 42698131 is about 349.5180604979.

The spelling of 42698131 in words is "forty-two million, six hundred ninety-eight thousand, one hundred thirty-one".