103191957 has 24 divisors (see below), whose sum is σ = 166578048. Its totient is φ = 61012800.

The previous prime is 103191953. The next prime is 103191967. The reversal of 103191957 is 759191301.

It is not a de Polignac number, because 103191957 - 2² = 103191953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103191953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8653 + ... + 16770.

It is an arithmetic number, because the mean of its divisors is an integer number (6940752).

Almost surely, 2^103191957 is an apocalyptic number.

It is an amenable number.

103191957 is a deficient number, since it is larger than the sum of its proper divisors (63386091).

103191957 is a wasteful number, since it uses less digits than its factorization.

103191957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25481 (or 25478 counting only the distinct ones).

The product of its (nonzero) digits is 8505, while the sum is 36.

The square root of 103191957 is about 10158.3442056272. The cubic root of 103191957 is about 469.0458339496.

The spelling of 103191957 in words is "one hundred three million, one hundred ninety-one thousand, nine hundred fifty-seven".