190300491 has 12 divisors (see below), whose sum is σ = 278191368. Its totient is φ = 125337984.

The previous prime is 190300457. The next prime is 190300501. The reversal of 190300491 is 194003091.

It is a de Polignac number, because none of the positive numbers 2^k-190300491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190300441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 126630 + ... + 128123.

It is an arithmetic number, because the mean of its divisors is an integer number (23182614).

Almost surely, 2^190300491 is an apocalyptic number.

190300491 is a deficient number, since it is larger than the sum of its proper divisors (87890877).

190300491 is a wasteful number, since it uses less digits than its factorization.

190300491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254842 (or 254839 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 190300491 is about 13794.9444000329. The cubic root of 190300491 is about 575.1926170063.

The spelling of 190300491 in words is "one hundred ninety million, three hundred thousand, four hundred ninety-one".