23102489 has 2 divisors, whose sum is σ = 23102490. Its totient is φ = 23102488.
The previous prime is 23102483. The next prime is 23102509. The reversal of 23102489 is 98420132.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 22657600 + 444889 = 4760^2 + 667^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-23102489 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (23102483) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11551244 + 11551245.
It is an arithmetic number, because the mean of its divisors is an integer number (11551245).
Almost surely, 223102489 is an apocalyptic number.
It is an amenable number.
23102489 is a deficient number, since it is larger than the sum of its proper divisors (1).
23102489 is an equidigital number, since it uses as much as digits as its factorization.
23102489 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3456, while the sum is 29.
The square root of 23102489 is about 4806.5048632036. The cubic root of 23102489 is about 284.8084852670.
The spelling of 23102489 in words is "twenty-three million, one hundred two thousand, four hundred eighty-nine".
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