190231239 has 12 divisors (see below), whose sum is σ = 278796728. Its totient is φ = 115291440.

The previous prime is 190231193. The next prime is 190231243. The reversal of 190231239 is 932132091.

It is a happy number.

It is not a de Polignac number, because 190231239 - 2¹² = 190227143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190231339) 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, 261664 + ... + 262389.

Almost surely, 2^190231239 is an apocalyptic number.

190231239 is a deficient number, since it is larger than the sum of its proper divisors (88565489).

190231239 is a wasteful number, since it uses less digits than its factorization.

190231239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524078 (or 524067 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 190231239 is about 13792.4341216480. The cubic root of 190231239 is about 575.1228360128.

The spelling of 190231239 in words is "one hundred ninety million, two hundred thirty-one thousand, two hundred thirty-nine".