185252934997 has 18 divisors (see below), whose sum is σ = 206058793122. Its totient is φ = 166350446496.

The previous prime is 185252934991. The next prime is 185252935003. The reversal of 185252934997 is 799439252581.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (185252934991) and next prime (185252935003).

It can be written as a sum of positive squares in 3 ways, for example, as 9598904676 + 175654030321 = 97974^2 + 419111^2 .

It is a de Polignac number, because none of the positive numbers 2^k-185252934997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185252934991) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34032358 + ... + 34037800.

It is an arithmetic number, because the mean of its divisors is an integer number (11447710729).

Almost surely, 2^185252934997 is an apocalyptic number.

It is an amenable number.

185252934997 is a deficient number, since it is larger than the sum of its proper divisors (20805858125).

185252934997 is an frugal number, since it uses more digits than its factorization.

185252934997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10949 (or 5493 counting only the distinct ones).

The product of its digits is 48988800, while the sum is 64.

The spelling of 185252934997 in words is "one hundred eighty-five billion, two hundred fifty-two million, nine hundred thirty-four thousand, nine hundred ninety-seven".