22701493 has 2 divisors, whose sum is σ = 22701494. Its totient is φ = 22701492.

The previous prime is 22701473. The next prime is 22701521. The reversal of 22701493 is 39410722.

It is an a-pointer prime, because the next prime (22701521) can be obtained adding 22701493 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20412324 + 2289169 = 4518^2 + 1513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22701493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22701433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11350746 + 11350747.

It is an arithmetic number, because the mean of its divisors is an integer number (11350747).

Almost surely, 2^22701493 is an apocalyptic number.

It is an amenable number.

22701493 is a deficient number, since it is larger than the sum of its proper divisors (1).

22701493 is an equidigital number, since it uses as much as digits as its factorization.

22701493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 22701493 is about 4764.6083784504. The cubic root of 22701493 is about 283.1510262823.

The spelling of 22701493 in words is "twenty-two million, seven hundred one thousand, four hundred ninety-three".