190914431 has 4 divisors (see below), whose sum is σ = 191874000. Its totient is φ = 189954864.

The previous prime is 190914379. The next prime is 190914433. The reversal of 190914431 is 134419091.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-190914431 is a prime.

It is a super-2 number, since 2×190914431² = 72896639928107522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190914433) 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, 479486 + ... + 479883.

It is an arithmetic number, because the mean of its divisors is an integer number (47968500).

Almost surely, 2^190914431 is an apocalyptic number.

190914431 is a deficient number, since it is larger than the sum of its proper divisors (959569).

190914431 is an equidigital number, since it uses as much as digits as its factorization.

190914431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959568.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 190914431 is about 13817.1788365064. The cubic root of 190914431 is about 575.8105076506.

The spelling of 190914431 in words is "one hundred ninety million, nine hundred fourteen thousand, four hundred thirty-one".