190145878 has 32 divisors (see below), whose sum is σ = 318608640. Its totient is φ = 84516480.

The previous prime is 190145861. The next prime is 190145887. The reversal of 190145878 is 878541091.

It is a happy number.

190145878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216376 + ... + 217252.

It is an arithmetic number, because the mean of its divisors is an integer number (9956520).

Almost surely, 2^190145878 is an apocalyptic number.

190145878 is a deficient number, since it is larger than the sum of its proper divisors (128462762).

190145878 is a wasteful number, since it uses less digits than its factorization.

190145878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 190145878 is about 13789.3392880152. The cubic root of 190145878 is about 575.0367996612.

The spelling of 190145878 in words is "one hundred ninety million, one hundred forty-five thousand, eight hundred seventy-eight".