190137087 has 24 divisors (see below), whose sum is σ = 315248544. Its totient is φ = 108175104.

The previous prime is 190137071. The next prime is 190137091. The reversal of 190137087 is 780731091.

It is not a de Polignac number, because 190137087 - 2⁴ = 190137071 is a prime.

It is a super-2 number, since 2×190137087² = 72304223705691138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190137007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8203 + ... + 21155.

It is an arithmetic number, because the mean of its divisors is an integer number (13135356).

Almost surely, 2^190137087 is an apocalyptic number.

190137087 is a deficient number, since it is larger than the sum of its proper divisors (125111457).

190137087 is a wasteful number, since it uses less digits than its factorization.

190137087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13199 (or 13196 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 36.

The square root of 190137087 is about 13789.0205235905. The cubic root of 190137087 is about 575.0279376470.

The spelling of 190137087 in words is "one hundred ninety million, one hundred thirty-seven thousand, eighty-seven".