213155124 has 48 divisors (see below), whose sum is σ = 612140928. Its totient is φ = 56216448.

The previous prime is 213155123. The next prime is 213155153. The reversal of 213155124 is 421551312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 213155094 and 213155103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213155123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96507 + ... + 98690.

It is an arithmetic number, because the mean of its divisors is an integer number (12752936).

Almost surely, 2^213155124 is an apocalyptic number.

It is an amenable number.

213155124 is an abundant number, since it is smaller than the sum of its proper divisors (398985804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213155124 is a wasteful number, since it uses less digits than its factorization.

213155124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195224 (or 195222 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 213155124 is about 14599.8330127437. The cubic root of 213155124 is about 597.3542056586.

The spelling of 213155124 in words is "two hundred thirteen million, one hundred fifty-five thousand, one hundred twenty-four".