155166213 has 8 divisors (see below), whose sum is σ = 208127808. Its totient is φ = 102824384.

The previous prime is 155166173. The next prime is 155166247. The reversal of 155166213 is 312661551.

155166213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 155166213 - 2⁶ = 155166149 is a prime.

It is a super-2 number, since 2×155166213² = 48153107313522738, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155166013) 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, 154356 + ... + 155357.

It is an arithmetic number, because the mean of its divisors is an integer number (26015976).

Almost surely, 2^155166213 is an apocalyptic number.

It is an amenable number.

155166213 is a deficient number, since it is larger than the sum of its proper divisors (52961595).

155166213 is a wasteful number, since it uses less digits than its factorization.

155166213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309883.

The product of its digits is 5400, while the sum is 30.

The square root of 155166213 is about 12456.5730841191. The cubic root of 155166213 is about 537.3604763511.

The spelling of 155166213 in words is "one hundred fifty-five million, one hundred sixty-six thousand, two hundred thirteen".