190978083 has 6 divisors (see below), whose sum is σ = 275857244. Its totient is φ = 127318716.

The previous prime is 190978057. The next prime is 190978087. The reversal of 190978083 is 380879091.

It is not a de Polignac number, because 190978083 - 2¹² = 190973987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190978087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10609885 + ... + 10609902.

Almost surely, 2^190978083 is an apocalyptic number.

190978083 is a deficient number, since it is larger than the sum of its proper divisors (84879161).

190978083 is a wasteful number, since it uses less digits than its factorization.

190978083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21219793 (or 21219790 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 190978083 is about 13819.4820091058. The cubic root of 190978083 is about 575.8744934159.

The spelling of 190978083 in words is "one hundred ninety million, nine hundred seventy-eight thousand, eighty-three".