185155154212313 has 4 divisors (see below), whose sum is σ = 189461088031248. Its totient is φ = 180849220393380.

The previous prime is 185155154212307. The next prime is 185155154212403. The reversal of 185155154212313 is 313212451551581.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 185155154212313 - 2¹⁴ = 185155154195929 is a prime.

It is a super-2 number, since 2×185155154212313² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (185155154212013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2152966909403 + ... + 2152966909488.

It is an arithmetic number, because the mean of its divisors is an integer number (47365272007812).

Almost surely, 2^{185155154212313} is an apocalyptic number.

It is an amenable number.

185155154212313 is a deficient number, since it is larger than the sum of its proper divisors (4305933818935).

185155154212313 is an equidigital number, since it uses as much as digits as its factorization.

185155154212313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4305933818934.

The product of its digits is 720000, while the sum is 47.

The spelling of 185155154212313 in words is "one hundred eighty-five trillion, one hundred fifty-five billion, one hundred fifty-four million, two hundred twelve thousand, three hundred thirteen".