22603481 has 2 divisors, whose sum is σ = 22603482. Its totient is φ = 22603480.

The previous prime is 22603459. The next prime is 22603507. The reversal of 22603481 is 18430622.

It is an a-pointer prime, because the next prime (22603507) can be obtained adding 22603481 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12138256 + 10465225 = 3484^2 + 3235^2 .

It is a cyclic number.

It is not a de Polignac number, because 22603481 - 2⁶ = 22603417 is a prime.

It is a super-2 number, since 2×22603481² = 1021834706634722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22603481.

It is not a weakly prime, because it can be changed into another prime (22609481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11301740 + 11301741.

It is an arithmetic number, because the mean of its divisors is an integer number (11301741).

Almost surely, 2^22603481 is an apocalyptic number.

It is an amenable number.

22603481 is a deficient number, since it is larger than the sum of its proper divisors (1).

22603481 is an equidigital number, since it uses as much as digits as its factorization.

22603481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 22603481 is about 4754.3118324317. The cubic root of 22603481 is about 282.7429439620.

The spelling of 22603481 in words is "twenty-two million, six hundred three thousand, four hundred eighty-one".