190537231 has 4 divisors (see below), whose sum is σ = 190616752. Its totient is φ = 190457712.

The previous prime is 190537229. The next prime is 190537247. The reversal of 190537231 is 132735091.

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 190537231 - 2¹ = 190537229 is a prime.

It is a super-2 number, since 2×190537231² = 72608872794294722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190537193 and 190537202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190537261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36051 + ... + 40996.

It is an arithmetic number, because the mean of its divisors is an integer number (47654188).

Almost surely, 2^190537231 is an apocalyptic number.

190537231 is a deficient number, since it is larger than the sum of its proper divisors (79521).

190537231 is an equidigital number, since it uses as much as digits as its factorization.

190537231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79520.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 190537231 is about 13803.5224127757. The cubic root of 190537231 is about 575.4310376068.

The spelling of 190537231 in words is "one hundred ninety million, five hundred thirty-seven thousand, two hundred thirty-one".