190000231 has 4 divisors (see below), whose sum is σ = 191387232. Its totient is φ = 188613232.

The previous prime is 190000219. The next prime is 190000241. The reversal of 190000231 is 132000091.

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 190000231 - 2⁷ = 190000103 is a prime.

It is a super-2 number, since 2×190000231² = 72200175560106722, which contains 22 as substring.

It is a Duffinian number.

190000231 is a modest number, since divided by 231 gives 190 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190000241) 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, 693295 + ... + 693568.

It is an arithmetic number, because the mean of its divisors is an integer number (47846808).

Almost surely, 2^190000231 is an apocalyptic number.

190000231 is a deficient number, since it is larger than the sum of its proper divisors (1387001).

190000231 is a wasteful number, since it uses less digits than its factorization.

190000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1387000.

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

The square root of 190000231 is about 13784.0571313384. The cubic root of 190000231 is about 574.8899408760.

The spelling of 190000231 in words is "one hundred ninety million, two hundred thirty-one", and thus it is an aban number.