194725953 has 6 divisors (see below), whose sum is σ = 281270834. Its totient is φ = 129817296.

The previous prime is 194725907. The next prime is 194725957. The reversal of 194725953 is 359527491.

It is a happy number.

194725953 is a `hidden beast` number, since 19 + 47 + 2 + 595 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 114318864 + 80407089 = 10692^2 + 8967^2 .

It is not a de Polignac number, because 194725953 - 2⁸ = 194725697 is a prime.

It is a super-5 number, since 5×194725953⁵ (a number of 43 digits) contains 55555 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194725899 and 194725908.

It is not an unprimeable number, because it can be changed into a prime (194725957) 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, 10818100 + ... + 10818117.

Almost surely, 2^194725953 is an apocalyptic number.

It is an amenable number.

194725953 is a deficient number, since it is larger than the sum of its proper divisors (86544881).

194725953 is a wasteful number, since it uses less digits than its factorization.

194725953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21636223 (or 21636220 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The square root of 194725953 is about 13954.4241371688. The cubic root of 194725953 is about 579.6172196888.

It can be divided in two parts, 19472 and 5953, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 194725953 in words is "one hundred ninety-four million, seven hundred twenty-five thousand, nine hundred fifty-three".