898431131 has 16 divisors (see below), whose sum is σ = 1021806240. Its totient is φ = 783095040.

The previous prime is 898431103. The next prime is 898431133. The reversal of 898431131 is 131134898.

It is not a de Polignac number, because 898431131 - 2²⁶ = 831322267 is a prime.

It is a super-2 number, since 2×898431131² = 1614356994299878322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (898431133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71501 + ... + 83121.

It is an arithmetic number, because the mean of its divisors is an integer number (63862890).

Almost surely, 2^898431131 is an apocalyptic number.

898431131 is a deficient number, since it is larger than the sum of its proper divisors (123375109).

898431131 is a wasteful number, since it uses less digits than its factorization.

898431131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11966.

The product of its digits is 20736, while the sum is 38.

The square root of 898431131 is about 29973.8407782520. The cubic root of 898431131 is about 964.9280485428.

The spelling of 898431131 in words is "eight hundred ninety-eight million, four hundred thirty-one thousand, one hundred thirty-one".