126262489 has 2 divisors, whose sum is σ = 126262490. Its totient is φ = 126262488.

The previous prime is 126262481. The next prime is 126262517. The reversal of 126262489 is 984262621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95648400 + 30614089 = 9780^2 + 5533^2 .

It is a cyclic number.

It is not a de Polignac number, because 126262489 - 2³ = 126262481 is a prime.

It is a super-2 number, since 2×126262489² = 31884432256950242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126262481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63131244 + 63131245.

It is an arithmetic number, because the mean of its divisors is an integer number (63131245).

Almost surely, 2^126262489 is an apocalyptic number.

It is an amenable number.

126262489 is a deficient number, since it is larger than the sum of its proper divisors (1).

126262489 is an equidigital number, since it uses as much as digits as its factorization.

126262489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 40.

The square root of 126262489 is about 11236.6582665844. The cubic root of 126262489 is about 501.6776831292.

The spelling of 126262489 in words is "one hundred twenty-six million, two hundred sixty-two thousand, four hundred eighty-nine".