421198131 has 8 divisors (see below), whose sum is σ = 561692880. Its totient is φ = 280751072.

The previous prime is 421198093. The next prime is 421198133. The reversal of 421198131 is 131891124.

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 421198131 - 2¹⁵ = 421165363 is a prime.

It is a super-2 number, since 2×421198131² = 354815731115786322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421198133) 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, 25225 + ... + 38453.

It is an arithmetic number, because the mean of its divisors is an integer number (70211610).

Almost surely, 2^421198131 is an apocalyptic number.

421198131 is a deficient number, since it is larger than the sum of its proper divisors (140494749).

421198131 is a wasteful number, since it uses less digits than its factorization.

421198131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23845.

The product of its digits is 1728, while the sum is 30.

The square root of 421198131 is about 20523.1121178051. The cubic root of 421198131 is about 749.5986777367.

The spelling of 421198131 in words is "four hundred twenty-one million, one hundred ninety-eight thousand, one hundred thirty-one".