2197562231 has 2 divisors, whose sum is σ = 2197562232. Its totient is φ = 2197562230.

The previous prime is 2197562207. The next prime is 2197562281. The reversal of 2197562231 is 1322657912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2197562231 - 2²² = 2193367927 is a prime.

It is a super-2 number, since 2×2197562231² = 9658559518235394722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2197562281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098781115 + 1098781116.

It is an arithmetic number, because the mean of its divisors is an integer number (1098781116).

Almost surely, 2^2197562231 is an apocalyptic number.

2197562231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197562231 is an equidigital number, since it uses as much as digits as its factorization.

2197562231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

The square root of 2197562231 is about 46878.1636905713. The cubic root of 2197562231 is about 1300.1108842302.

The spelling of 2197562231 in words is "two billion, one hundred ninety-seven million, five hundred sixty-two thousand, two hundred thirty-one".