130903891 has 4 divisors (see below), whose sum is σ = 134441872. Its totient is φ = 127365912.

The previous prime is 130903889. The next prime is 130903897. The reversal of 130903891 is 198309031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130903891 - 2¹ = 130903889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130903897) 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, 1768935 + ... + 1769008.

It is an arithmetic number, because the mean of its divisors is an integer number (33610468).

Almost surely, 2^130903891 is an apocalyptic number.

130903891 is a deficient number, since it is larger than the sum of its proper divisors (3537981).

130903891 is an equidigital number, since it uses as much as digits as its factorization.

130903891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3537980.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 130903891 is about 11441.3238307462. The cubic root of 130903891 is about 507.7510754220.

The spelling of 130903891 in words is "one hundred thirty million, nine hundred three thousand, eight hundred ninety-one".