426121531 has 16 divisors (see below), whose sum is σ = 493683840. Its totient is φ = 363726720.

The previous prime is 426121523. The next prime is 426121571. The reversal of 426121531 is 135121624.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 426121531 - 2³ = 426121523 is a prime.

It is a super-2 number, since 2×426121531² = 363159118363567922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 426121496 and 426121505.

It is not an unprimeable number, because it can be changed into a prime (426121571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14596 + ... + 32638.

It is an arithmetic number, because the mean of its divisors is an integer number (30855240).

Almost surely, 2^426121531 is an apocalyptic number.

426121531 is a deficient number, since it is larger than the sum of its proper divisors (67562309).

426121531 is a wasteful number, since it uses less digits than its factorization.

426121531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18186.

The product of its digits is 1440, while the sum is 25.

The square root of 426121531 is about 20642.7113286990. The cubic root of 426121531 is about 752.5080662704.

The spelling of 426121531 in words is "four hundred twenty-six million, one hundred twenty-one thousand, five hundred thirty-one".