190157090 has 8 divisors (see below), whose sum is σ = 342282780. Its totient is φ = 76062832.

The previous prime is 190157081. The next prime is 190157101. The reversal of 190157090 is 90751091.

It can be written as a sum of positive squares in 2 ways, for example, as 189090001 + 1067089 = 13751^2 + 1033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9507845 + ... + 9507864.

Almost surely, 2^190157090 is an apocalyptic number.

190157090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190157090 is a deficient number, since it is larger than the sum of its proper divisors (152125690).

190157090 is a wasteful number, since it uses less digits than its factorization.

190157090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19015716.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 190157090 is about 13789.7458279694. The cubic root of 190157090 is about 575.0481018360.

The spelling of 190157090 in words is "one hundred ninety million, one hundred fifty-seven thousand, ninety".