213015772 has 12 divisors (see below), whose sum is σ = 373123296. Its totient is φ = 106409120.

The previous prime is 213015749. The next prime is 213015773. The reversal of 213015772 is 277510312.

It is a self number, because there is not a number n which added to its sum of digits gives 213015772.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213015773) 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, 19729 + ... + 28552.

It is an arithmetic number, because the mean of its divisors is an integer number (31093608).

Almost surely, 2^213015772 is an apocalyptic number.

It is an amenable number.

213015772 is a deficient number, since it is larger than the sum of its proper divisors (160107524).

213015772 is a wasteful number, since it uses less digits than its factorization.

213015772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49388 (or 49386 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 213015772 is about 14595.0598491407. The cubic root of 213015772 is about 597.2240021266.

The spelling of 213015772 in words is "two hundred thirteen million, fifteen thousand, seven hundred seventy-two".