22698149 has 2 divisors, whose sum is σ = 22698150. Its totient is φ = 22698148.

The previous prime is 22698127. The next prime is 22698167. The reversal of 22698149 is 94189622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21808900 + 889249 = 4670^2 + 943^2 .

It is a cyclic number.

It is not a de Polignac number, because 22698149 - 2⁸ = 22697893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22698199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11349074 + 11349075.

It is an arithmetic number, because the mean of its divisors is an integer number (11349075).

Almost surely, 2^22698149 is an apocalyptic number.

It is an amenable number.

22698149 is a deficient number, since it is larger than the sum of its proper divisors (1).

22698149 is an equidigital number, since it uses as much as digits as its factorization.

22698149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 22698149 is about 4764.2574447651. The cubic root of 22698149 is about 283.1371225928.

The spelling of 22698149 in words is "twenty-two million, six hundred ninety-eight thousand, one hundred forty-nine".