212926091 has 8 divisors (see below), whose sum is σ = 251735520. Its totient is φ = 176214528.

The previous prime is 212926081. The next prime is 212926097. The reversal of 212926091 is 190629212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212926091 - 2¹⁸ = 212663947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212926097) 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, 524246 + ... + 524651.

It is an arithmetic number, because the mean of its divisors is an integer number (31466940).

Almost surely, 2^212926091 is an apocalyptic number.

212926091 is a deficient number, since it is larger than the sum of its proper divisors (38809429).

212926091 is a wasteful number, since it uses less digits than its factorization.

212926091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048933.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 212926091 is about 14591.9872190185. The cubic root of 212926091 is about 597.1401786562.

The spelling of 212926091 in words is "two hundred twelve million, nine hundred twenty-six thousand, ninety-one".