10401257 has 4 divisors (see below), whose sum is σ = 10416000. Its totient is φ = 10386516.

The previous prime is 10401253. The next prime is 10401271. The reversal of 10401257 is 75210401.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75210401 = 7 ⋅10744343.

It is a cyclic number.

It is not a de Polignac number, because 10401257 - 2² = 10401253 is a prime.

It is a super-2 number, since 2×10401257² = 216372294360098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10401253) 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, 6257 + ... + 7742.

It is an arithmetic number, because the mean of its divisors is an integer number (2604000).

Almost surely, 2^10401257 is an apocalyptic number.

It is an amenable number.

10401257 is a deficient number, since it is larger than the sum of its proper divisors (14743).

10401257 is an equidigital number, since it uses as much as digits as its factorization.

10401257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14742.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 10401257 is about 3225.0979830076. The cubic root of 10401257 is about 218.2873703660.

Adding to 10401257 its reverse (75210401), we get a palindrome (85611658).

The spelling of 10401257 in words is "ten million, four hundred one thousand, two hundred fifty-seven".