103257457 has 4 divisors (see below), whose sum is σ = 108692080. Its totient is φ = 97822836.

The previous prime is 103257443. The next prime is 103257481. The reversal of 103257457 is 754752301.

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 103257457 - 2²³ = 94868849 is a prime.

It is a super-2 number, since 2×103257457² = 21324204852213698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103257437) 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, 2717283 + ... + 2717320.

It is an arithmetic number, because the mean of its divisors is an integer number (27173020).

Almost surely, 2^103257457 is an apocalyptic number.

It is an amenable number.

103257457 is a deficient number, since it is larger than the sum of its proper divisors (5434623).

103257457 is an equidigital number, since it uses as much as digits as its factorization.

103257457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5434622.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 103257457 is about 10161.5676448076. The cubic root of 103257457 is about 469.1450535821.

The spelling of 103257457 in words is "one hundred three million, two hundred fifty-seven thousand, four hundred fifty-seven".