10157705 has 4 divisors (see below), whose sum is σ = 12189252. Its totient is φ = 8126160.

The previous prime is 10157701. The next prime is 10157729. The reversal of 10157705 is 50775101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50775101 = 13 ⋅3905777.

It can be written as a sum of positive squares in 2 ways, for example, as 1926544 + 8231161 = 1388^2 + 2869^2 .

It is not a de Polignac number, because 10157705 - 2² = 10157701 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10157701) 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, 1015766 + ... + 1015775.

It is an arithmetic number, because the mean of its divisors is an integer number (3047313).

Almost surely, 2^10157705 is an apocalyptic number.

It is an amenable number.

10157705 is a deficient number, since it is larger than the sum of its proper divisors (2031547).

10157705 is an equidigital number, since it uses as much as digits as its factorization.

10157705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2031546.

The product of its (nonzero) digits is 1225, while the sum is 26.

The square root of 10157705 is about 3187.1154670015. The cubic root of 10157705 is about 216.5701174037.

The spelling of 10157705 in words is "ten million, one hundred fifty-seven thousand, seven hundred five".