190118849 has 4 divisors (see below), whose sum is σ = 190165440. Its totient is φ = 190072260.

The previous prime is 190118843. The next prime is 190118857. The reversal of 190118849 is 948811091.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 948811091 = 37 ⋅25643543.

It is a cyclic number.

It is not a de Polignac number, because 190118849 - 2⁴ = 190118833 is a prime.

It is a super-2 number, since 2×190118849² = 72290353490169602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190118843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16517 + ... + 25554.

It is an arithmetic number, because the mean of its divisors is an integer number (47541360).

Almost surely, 2^190118849 is an apocalyptic number.

It is an amenable number.

190118849 is a deficient number, since it is larger than the sum of its proper divisors (46591).

190118849 is an equidigital number, since it uses as much as digits as its factorization.

190118849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46590.

The product of its (nonzero) digits is 20736, while the sum is 41.

The square root of 190118849 is about 13788.3591844715. The cubic root of 190118849 is about 575.0095514481.

The spelling of 190118849 in words is "one hundred ninety million, one hundred eighteen thousand, eight hundred forty-nine".