101798431 has 12 divisors (see below), whose sum is σ = 125385408. Its totient is φ = 82122432.

The previous prime is 101798413. The next prime is 101798441. The reversal of 101798431 is 134897101.

It is not a de Polignac number, because 101798431 - 2⁷ = 101798303 is a prime.

It is a super-2 number, since 2×101798431² = 20725841108123522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101798401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60271 + ... + 61936.

It is an arithmetic number, because the mean of its divisors is an integer number (10448784).

Almost surely, 2^101798431 is an apocalyptic number.

101798431 is a deficient number, since it is larger than the sum of its proper divisors (23586977).

101798431 is a wasteful number, since it uses less digits than its factorization.

101798431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122238 (or 122231 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 101798431 is about 10089.5208508630. The cubic root of 101798431 is about 466.9248931970.

The spelling of 101798431 in words is "one hundred one million, seven hundred ninety-eight thousand, four hundred thirty-one".