10129931 has 8 divisors (see below), whose sum is σ = 11750400. Its totient is φ = 8552808.

The previous prime is 10129927. The next prime is 10129939. The reversal of 10129931 is 13992101.

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 10129931 - 2² = 10129927 is a prime.

It is a super-2 number, since 2×10129931² = 205231004129522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10129931.

It is not an unprimeable number, because it can be changed into a prime (10129939) 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, 10331 + ... + 11268.

It is an arithmetic number, because the mean of its divisors is an integer number (1468800).

Almost surely, 2^10129931 is an apocalyptic number.

10129931 is a deficient number, since it is larger than the sum of its proper divisors (1620469).

10129931 is an equidigital number, since it uses as much as digits as its factorization.

10129931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21673.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 10129931 is about 3182.7552529216. The cubic root of 10129931 is about 216.3725495137.

The spelling of 10129931 in words is "ten million, one hundred twenty-nine thousand, nine hundred thirty-one".