10257745 has 8 divisors (see below), whose sum is σ = 12706560. Its totient is φ = 7941360.

The previous prime is 10257743. The next prime is 10257761. The reversal of 10257745 is 54775201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10257745 - 2¹ = 10257743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (10257743) 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, 32935 + ... + 33244.

It is an arithmetic number, because the mean of its divisors is an integer number (1588320).

Almost surely, 2^10257745 is an apocalyptic number.

It is an amenable number.

10257745 is a deficient number, since it is larger than the sum of its proper divisors (2448815).

10257745 is an equidigital number, since it uses as much as digits as its factorization.

10257745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66215.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 10257745 is about 3202.7714560986. The cubic root of 10257745 is about 217.2787727238.

The spelling of 10257745 in words is "ten million, two hundred fifty-seven thousand, seven hundred forty-five".