190190667 has 4 divisors (see below), whose sum is σ = 253587560. Its totient is φ = 126793776.

The previous prime is 190190653. The next prime is 190190669. The reversal of 190190667 is 766091091.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 766091091 = 3 ⋅255363697.

It is not a de Polignac number, because 190190667 - 2²⁰ = 189142091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190190669) 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 3 ways as a sum of consecutive naturals, for example, 31698442 + ... + 31698447.

It is an arithmetic number, because the mean of its divisors is an integer number (63396890).

Almost surely, 2^190190667 is an apocalyptic number.

190190667 is a deficient number, since it is larger than the sum of its proper divisors (63396893).

190190667 is an equidigital number, since it uses as much as digits as its factorization.

190190667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63396892.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 190190667 is about 13790.9632368446. The cubic root of 190190667 is about 575.0819462289.

The spelling of 190190667 in words is "one hundred ninety million, one hundred ninety thousand, six hundred sixty-seven".