213079091 has 12 divisors (see below), whose sum is σ = 230204520. Its totient is φ = 196564320.

The previous prime is 213079067. The next prime is 213079103. The reversal of 213079091 is 190970312.

It is a happy number.

213079091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213079091 - 2¹⁰ = 213078067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213079001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407156 + ... + 407678.

It is an arithmetic number, because the mean of its divisors is an integer number (19183710).

Almost surely, 2^213079091 is an apocalyptic number.

213079091 is a deficient number, since it is larger than the sum of its proper divisors (17125429).

213079091 is an frugal number, since it uses more digits than its factorization.

213079091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 583 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 213079091 is about 14597.2288808527. The cubic root of 213079091 is about 597.2831712669.

The spelling of 213079091 in words is "two hundred thirteen million, seventy-nine thousand, ninety-one".