103256557 has 4 divisors (see below), whose sum is σ = 103373856. Its totient is φ = 103139260.

The previous prime is 103256539. The next prime is 103256579. The reversal of 103256557 is 755652301.

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: 755652301 = 79 ⋅9565219.

It is a cyclic number.

It is not a de Polignac number, because 103256557 - 2⁷ = 103256429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103256057) 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, 57319 + ... + 59092.

It is an arithmetic number, because the mean of its divisors is an integer number (25843464).

Almost surely, 2^103256557 is an apocalyptic number.

It is an amenable number.

103256557 is a deficient number, since it is larger than the sum of its proper divisors (117299).

103256557 is an equidigital number, since it uses as much as digits as its factorization.

103256557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117298.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 103256557 is about 10161.5233602054. The cubic root of 103256557 is about 469.1436905432.

The spelling of 103256557 in words is "one hundred three million, two hundred fifty-six thousand, five hundred fifty-seven".