185250013 has 8 divisors (see below), whose sum is σ = 204366456. Its totient is φ = 166828800.

The previous prime is 185250011. The next prime is 185250047. The reversal of 185250013 is 310052581.

It is a happy number.

185250013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3485689 + 181764324 = 1867^2 + 13482^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 185250013 - 2¹ = 185250011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 185250013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185250011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173248 + ... + 174313.

It is an arithmetic number, because the mean of its divisors is an integer number (25545807).

Almost surely, 2^185250013 is an apocalyptic number.

185250013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

185250013 is a deficient number, since it is larger than the sum of its proper divisors (19116443).

185250013 is a wasteful number, since it uses less digits than its factorization.

185250013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347615.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 185250013 is about 13610.6580663831. The cubic root of 185250013 is about 570.0584868681.

The spelling of 185250013 in words is "one hundred eighty-five million, two hundred fifty thousand, thirteen".