190874087 has 2 divisors, whose sum is σ = 190874088. Its totient is φ = 190874086.

The previous prime is 190874059. The next prime is 190874107. The reversal of 190874087 is 780478091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 190874087 - 2⁶ = 190874023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (190274087) 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 as a sum of consecutive naturals, namely, 95437043 + 95437044.

It is an arithmetic number, because the mean of its divisors is an integer number (95437044).

Almost surely, 2^190874087 is an apocalyptic number.

190874087 is a deficient number, since it is larger than the sum of its proper divisors (1).

190874087 is an equidigital number, since it uses as much as digits as its factorization.

190874087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 190874087 is about 13815.7188376139. The cubic root of 190874087 is about 575.7699447389.

The spelling of 190874087 in words is "one hundred ninety million, eight hundred seventy-four thousand, eighty-seven".