103753991 has 6 divisors (see below), whose sum is σ = 114043776. Its totient is φ = 94321700.

The previous prime is 103753987. The next prime is 103753997. The reversal of 103753991 is 199357301.

It is not a de Polignac number, because 103753991 - 2² = 103753987 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103753997) 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 5 ways as a sum of consecutive naturals, for example, 428615 + ... + 428856.

It is an arithmetic number, because the mean of its divisors is an integer number (19007296).

Almost surely, 2^103753991 is an apocalyptic number.

103753991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

103753991 is a deficient number, since it is larger than the sum of its proper divisors (10289785).

103753991 is an equidigital number, since it uses as much as digits as its factorization.

103753991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857493 (or 857482 counting only the distinct ones).

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 103753991 is about 10185.9703023325. The cubic root of 103753991 is about 469.8958438279.

The spelling of 103753991 in words is "one hundred three million, seven hundred fifty-three thousand, nine hundred ninety-one".