190150891 has 8 divisors (see below), whose sum is σ = 220559360. Its totient is φ = 160553448.

The previous prime is 190150819. The next prime is 190150897. The reversal of 190150891 is 198051091.

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

It is a cyclic number.

It is not a de Polignac number, because 190150891 - 2²⁵ = 156596459 is a prime.

It is a super-2 number, since 2×190150891² = 72314722696187762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190150897) 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 7 ways as a sum of consecutive naturals, for example, 202251 + ... + 203188.

It is an arithmetic number, because the mean of its divisors is an integer number (27569920).

Almost surely, 2^190150891 is an apocalyptic number.

190150891 is a deficient number, since it is larger than the sum of its proper divisors (30408469).

190150891 is an equidigital number, since it uses as much as digits as its factorization.

190150891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405513.

The product of its (nonzero) digits is 3240, while the sum is 34.

The square root of 190150891 is about 13789.5210576727. The cubic root of 190150891 is about 575.0418530342.

The spelling of 190150891 in words is "one hundred ninety million, one hundred fifty thousand, eight hundred ninety-one".