212791513 has 8 divisors (see below), whose sum is σ = 237075840. Its totient is φ = 189330480.

The previous prime is 212791489. The next prime is 212791541. The reversal of 212791513 is 315197212.

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 212791513 - 2²¹ = 210694361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212791213) 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, 205278 + ... + 206311.

It is an arithmetic number, because the mean of its divisors is an integer number (29634480).

Almost surely, 2^212791513 is an apocalyptic number.

It is an amenable number.

212791513 is a deficient number, since it is larger than the sum of its proper divisors (24284327).

212791513 is a wasteful number, since it uses less digits than its factorization.

212791513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411647.

The product of its digits is 3780, while the sum is 31.

The square root of 212791513 is about 14587.3751237157. The cubic root of 212791513 is about 597.0143464684.

The spelling of 212791513 in words is "two hundred twelve million, seven hundred ninety-one thousand, five hundred thirteen".