22295731 has 2 divisors, whose sum is σ = 22295732. Its totient is φ = 22295730.

The previous prime is 22295729. The next prime is 22295743. The reversal of 22295731 is 13759222.

22295731 is nontrivially palindromic in base 12.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22295731 - 2¹ = 22295729 is a prime.

It is a super-2 number, since 2×22295731² = 994199241648722, which contains 22 as substring.

Together with 22295729, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 22295693 and 22295702.

It is not a weakly prime, because it can be changed into another prime (22295701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11147865 + 11147866.

It is an arithmetic number, because the mean of its divisors is an integer number (11147866).

Almost surely, 2^22295731 is an apocalyptic number.

22295731 is a deficient number, since it is larger than the sum of its proper divisors (1).

22295731 is an equidigital number, since it uses as much as digits as its factorization.

22295731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 31.

The square root of 22295731 is about 4721.8355541039. The cubic root of 22295731 is about 281.4538791017.

The spelling of 22295731 in words is "twenty-two million, two hundred ninety-five thousand, seven hundred thirty-one".