610222091 has 4 divisors (see below), whose sum is σ = 610820784. Its totient is φ = 609623400.

The previous prime is 610222087. The next prime is 610222099. The reversal of 610222091 is 190222016.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 610222091 - 2² = 610222087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (610222099) 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, 297815 + ... + 299856.

It is an arithmetic number, because the mean of its divisors is an integer number (152705196).

Almost surely, 2^610222091 is an apocalyptic number.

610222091 is a deficient number, since it is larger than the sum of its proper divisors (598693).

610222091 is a wasteful number, since it uses less digits than its factorization.

610222091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598692.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 610222091 is about 24702.6737621659. The cubic root of 610222091 is about 848.1955218987.

The spelling of 610222091 in words is "six hundred ten million, two hundred twenty-two thousand, ninety-one".