190783925 has 6 divisors (see below), whose sum is σ = 236572098. Its totient is φ = 152627120.

The previous prime is 190783903. The next prime is 190783927. The reversal of 190783925 is 529387091.

It can be written as a sum of positive squares in 3 ways, for example, as 2380849 + 188403076 = 1543^2 + 13726^2 .

It is not a de Polignac number, because 190783925 - 2⁶ = 190783861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190783927) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3815654 + ... + 3815703.

It is an arithmetic number, because the mean of its divisors is an integer number (39428683).

Almost surely, 2^190783925 is an apocalyptic number.

It is an amenable number.

190783925 is a deficient number, since it is larger than the sum of its proper divisors (45788173).

190783925 is an equidigital number, since it uses as much as digits as its factorization.

190783925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7631367 (or 7631362 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 190783925 is about 13812.4554297923. The cubic root of 190783925 is about 575.6792728434.

The spelling of 190783925 in words is "one hundred ninety million, seven hundred eighty-three thousand, nine hundred twenty-five".