190513161 has 16 divisors (see below), whose sum is σ = 285817600. Its totient is φ = 125399664.

The previous prime is 190513157. The next prime is 190513181. The reversal of 190513161 is 161315091.

190513161 is a `hidden beast` number, since 1 + 90 + 513 + 1 + 61 = 666.

It is not a de Polignac number, because 190513161 - 2² = 190513157 is a prime.

It is a super-4 number, since 4×190513161⁴ (a number of 34 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190513181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42526 + ... + 46791.

It is an arithmetic number, because the mean of its divisors is an integer number (17863600).

Almost surely, 2^190513161 is an apocalyptic number.

It is an amenable number.

190513161 is a deficient number, since it is larger than the sum of its proper divisors (95304439).

190513161 is an equidigital number, since it uses as much as digits as its factorization.

190513161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89405 (or 89399 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 190513161 is about 13802.6505063339. The cubic root of 190513161 is about 575.4068057576.

The spelling of 190513161 in words is "one hundred ninety million, five hundred thirteen thousand, one hundred sixty-one".