103257891 has 18 divisors (see below), whose sum is σ = 163943780. Its totient is φ = 62579880.

The previous prime is 103257887. The next prime is 103257899. The reversal of 103257891 is 198752301.

It is not a de Polignac number, because 103257891 - 2² = 103257887 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (103257899) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 46321 + ... + 48498.

Almost surely, 2^103257891 is an apocalyptic number.

103257891 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103257891 is a deficient number, since it is larger than the sum of its proper divisors (60685889).

103257891 is a wasteful number, since it uses less digits than its factorization.

103257891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94847 (or 94833 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 103257891 is about 10161.5889997579. The cubic root of 103257891 is about 469.1457108669.

The spelling of 103257891 in words is "one hundred three million, two hundred fifty-seven thousand, eight hundred ninety-one".