190735139 has 4 divisors (see below), whose sum is σ = 217983024. Its totient is φ = 163487256.

The previous prime is 190735123. The next prime is 190735147. The reversal of 190735139 is 931537091.

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 190735139 - 2⁴ = 190735123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190735169) 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, 13623932 + ... + 13623945.

It is an arithmetic number, because the mean of its divisors is an integer number (54495756).

Almost surely, 2^190735139 is an apocalyptic number.

190735139 is a deficient number, since it is larger than the sum of its proper divisors (27247885).

190735139 is an equidigital number, since it uses as much as digits as its factorization.

190735139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27247884.

The product of its (nonzero) digits is 25515, while the sum is 38.

The square root of 190735139 is about 13810.6893021312. The cubic root of 190735139 is about 575.6301990317.

The spelling of 190735139 in words is "one hundred ninety million, seven hundred thirty-five thousand, one hundred thirty-nine".