190139699 has 4 divisors (see below), whose sum is σ = 190628880. Its totient is φ = 189650520.

The previous prime is 190139693. The next prime is 190139731. The reversal of 190139699 is 996931091.

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 190139699 - 2¹⁶ = 190074163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190139693) 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, 244007 + ... + 244784.

It is an arithmetic number, because the mean of its divisors is an integer number (47657220).

Almost surely, 2^190139699 is an apocalyptic number.

190139699 is a deficient number, since it is larger than the sum of its proper divisors (489181).

190139699 is an equidigital number, since it uses as much as digits as its factorization.

190139699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489180.

The product of its (nonzero) digits is 118098, while the sum is 47.

The square root of 190139699 is about 13789.1152363014. The cubic root of 190139699 is about 575.0305707754.

The spelling of 190139699 in words is "one hundred ninety million, one hundred thirty-nine thousand, six hundred ninety-nine".