190780953 has 16 divisors (see below), whose sum is σ = 293823936. Its totient is φ = 108823040.

The previous prime is 190780949. The next prime is 190780969. The reversal of 190780953 is 359087091.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 190780953 - 2² = 190780949 is a prime.

It is a Curzon number.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (190780903) 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, 169476 + ... + 170597.

It is an arithmetic number, because the mean of its divisors is an integer number (18363996).

Almost surely, 2^190780953 is an apocalyptic number.

It is an amenable number.

190780953 is a deficient number, since it is larger than the sum of its proper divisors (103042983).

190780953 is a wasteful number, since it uses less digits than its factorization.

190780953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340104.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 190780953 is about 13812.3478453158. The cubic root of 190780953 is about 575.6762835495.

The spelling of 190780953 in words is "one hundred ninety million, seven hundred eighty thousand, nine hundred fifty-three".