190704153 has 4 divisors (see below), whose sum is σ = 254272208. Its totient is φ = 127136100.

The previous prime is 190704149. The next prime is 190704169. The reversal of 190704153 is 351407091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 190704153 - 2² = 190704149 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 190704153.

It is not an unprimeable number, because it can be changed into a prime (190704103) 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, 31784023 + ... + 31784028.

It is an arithmetic number, because the mean of its divisors is an integer number (63568052).

Almost surely, 2^190704153 is an apocalyptic number.

It is an amenable number.

190704153 is a deficient number, since it is larger than the sum of its proper divisors (63568055).

190704153 is an equidigital number, since it uses as much as digits as its factorization.

190704153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63568054.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 190704153 is about 13809.5674443481. The cubic root of 190704153 is about 575.5990258851.

The spelling of 190704153 in words is "one hundred ninety million, seven hundred four thousand, one hundred fifty-three".