190235913 has 16 divisors (see below), whose sum is σ = 296626176. Its totient is φ = 106177680.

The previous prime is 190235897. The next prime is 190235939. The reversal of 190235913 is 319532091.

It is not a de Polignac number, because 190235913 - 2⁴ = 190235897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (190231913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104433 + ... + 106238.

It is an arithmetic number, because the mean of its divisors is an integer number (18539136).

Almost surely, 2^190235913 is an apocalyptic number.

It is an amenable number.

190235913 is a deficient number, since it is larger than the sum of its proper divisors (106390263).

190235913 is a wasteful number, since it uses less digits than its factorization.

190235913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210724.

The product of its (nonzero) digits is 7290, while the sum is 33.

The square root of 190235913 is about 13792.6035613295. The cubic root of 190235913 is about 575.1275462488.

The spelling of 190235913 in words is "one hundred ninety million, two hundred thirty-five thousand, nine hundred thirteen".