190378953 has 12 divisors (see below), whose sum is σ = 275826928. Its totient is φ = 126533880.

The previous prime is 190378943. The next prime is 190378957. The reversal of 190378953 is 359873091.

It is a happy number.

190378953 is a `hidden beast` number, since 190 + 378 + 95 + 3 = 666.

It is not a de Polignac number, because 190378953 - 2⁸ = 190378697 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 190378899 and 190378908.

It is not an unprimeable number, because it can be changed into a prime (190378957) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28975 + ... + 34932.

Almost surely, 2^190378953 is an apocalyptic number.

It is an amenable number.

190378953 is a deficient number, since it is larger than the sum of its proper divisors (85447975).

190378953 is a wasteful number, since it uses less digits than its factorization.

190378953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64244 (or 64241 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The square root of 190378953 is about 13797.7879748893. The cubic root of 190378953 is about 575.2716578988.

The spelling of 190378953 in words is "one hundred ninety million, three hundred seventy-eight thousand, nine hundred fifty-three".