126802431 has 24 divisors (see below), whose sum is σ = 216080384. Its totient is φ = 70120080.

The previous prime is 126802397. The next prime is 126802433. The reversal of 126802431 is 134208621.

It is not a de Polignac number, because 126802431 - 2²² = 122608127 is a prime.

It is a super-2 number, since 2×126802431² = 32157713015019522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126802395 and 126802404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126802433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30511 + ... + 34416.

Almost surely, 2^126802431 is an apocalyptic number.

126802431 is a deficient number, since it is larger than the sum of its proper divisors (89277953).

126802431 is a wasteful number, since it uses less digits than its factorization.

126802431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64971 (or 64968 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 126802431 is about 11260.6585509019. The cubic root of 126802431 is about 502.3917818492.

The spelling of 126802431 in words is "one hundred twenty-six million, eight hundred two thousand, four hundred thirty-one".