10129857 has 4 divisors (see below), whose sum is σ = 13506480. Its totient is φ = 6753236.

The previous prime is 10129853. The next prime is 10129871. The reversal of 10129857 is 75892101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10129857 - 2² = 10129853 is a prime.

It is a super-2 number, since 2×10129857² = 205228005680898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10129853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1688307 + ... + 1688312.

It is an arithmetic number, because the mean of its divisors is an integer number (3376620).

Almost surely, 2^10129857 is an apocalyptic number.

It is an amenable number.

10129857 is a deficient number, since it is larger than the sum of its proper divisors (3376623).

10129857 is an equidigital number, since it uses as much as digits as its factorization.

10129857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3376622.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 10129857 is about 3182.7436277526. The cubic root of 10129857 is about 216.3720226392.

The spelling of 10129857 in words is "ten million, one hundred twenty-nine thousand, eight hundred fifty-seven".