190207431 has 12 divisors (see below), whose sum is σ = 278222880. Its totient is φ = 125199360.

The previous prime is 190207429. The next prime is 190207469. The reversal of 190207431 is 134702091.

It is not a de Polignac number, because 190207431 - 2¹ = 190207429 is a prime.

It is a super-2 number, since 2×190207431² = 72357733615239522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 190207395 and 190207404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190207411) 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, 133050 + ... + 134471.

It is an arithmetic number, because the mean of its divisors is an integer number (23185240).

Almost surely, 2^190207431 is an apocalyptic number.

190207431 is a deficient number, since it is larger than the sum of its proper divisors (88015449).

190207431 is a wasteful number, since it uses less digits than its factorization.

190207431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267606 (or 267603 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 190207431 is about 13791.5710127599. The cubic root of 190207431 is about 575.0988422393.

The spelling of 190207431 in words is "one hundred ninety million, two hundred seven thousand, four hundred thirty-one".