190231 has 4 divisors (see below), whose sum is σ = 191464. Its totient is φ = 189000.

The previous prime is 190207. The next prime is 190243. The reversal of 190231 is 132091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132091 = 31 ⋅4261.

It is a cyclic number.

It is not a de Polignac number, because 190231 - 2¹⁷ = 59159 is a prime.

It is a super-2 number, since 2×190231² = 72375666722, 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 (190261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345 + ... + 706.

It is an arithmetic number, because the mean of its divisors is an integer number (47866).

2¹⁹⁰²³¹ is an apocalyptic number.

190231 is a deficient number, since it is larger than the sum of its proper divisors (1233).

190231 is a wasteful number, since it uses less digits than its factorization.

190231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 190231 is about 436.1547890371. The cubic root of 190231 is about 57.5122595158.

The spelling of 190231 in words is "one hundred ninety thousand, two hundred thirty-one".