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2197692131 is a prime number
BaseRepresentation
bin1000001011111110…
…0001111011100011
312200011100022211212
42002333201323203
514000102122011
61002024100335
7105314034455
oct20277417343
95604308755
102197692131
11a285a3698
125140046ab
1329040405b
1416bc3a2d5
15cce1308b
hex82fe1ee3

2197692131 has 2 divisors, whose sum is σ = 2197692132. Its totient is φ = 2197692130.

The previous prime is 2197692109. The next prime is 2197692149. The reversal of 2197692131 is 1312967912.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2197692131 - 218 = 2197429987 is a prime.

It is a super-2 number, since 2×21976921312 = 9659701405318642322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2197692631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098846065 + 1098846066.

It is an arithmetic number, because the mean of its divisors is an integer number (1098846066).

Almost surely, 22197692131 is an apocalyptic number.

2197692131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197692131 is an equidigital number, since it uses as much as digits as its factorization.

2197692131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 41.

The square root of 2197692131 is about 46879.5491765866. The cubic root of 2197692131 is about 1300.1365006570.

The spelling of 2197692131 in words is "two billion, one hundred ninety-seven million, six hundred ninety-two thousand, one hundred thirty-one".