190874731 has 4 divisors (see below), whose sum is σ = 191422000. Its totient is φ = 190327464.

The previous prime is 190874699. The next prime is 190874743. The reversal of 190874731 is 137478091.

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 190874731 - 2⁵ = 190874699 is a prime.

It is a super-2 number, since 2×190874731² = 72866325868644722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190874771) 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, 273111 + ... + 273808.

It is an arithmetic number, because the mean of its divisors is an integer number (47855500).

Almost surely, 2^190874731 is an apocalyptic number.

190874731 is a deficient number, since it is larger than the sum of its proper divisors (547269).

190874731 is an equidigital number, since it uses as much as digits as its factorization.

190874731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547268.

The product of its (nonzero) digits is 42336, while the sum is 40.

The square root of 190874731 is about 13815.7421443801. The cubic root of 190874731 is about 575.7705922782.

The spelling of 190874731 in words is "one hundred ninety million, eight hundred seventy-four thousand, seven hundred thirty-one".