126290693 has 2 divisors, whose sum is σ = 126290694. Its totient is φ = 126290692.

The previous prime is 126290651. The next prime is 126290711. The reversal of 126290693 is 396092621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114019684 + 12271009 = 10678^2 + 3503^2 .

It is an emirp because it is prime and its reverse (396092621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126290693 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126290623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63145346 + 63145347.

It is an arithmetic number, because the mean of its divisors is an integer number (63145347).

Almost surely, 2^126290693 is an apocalyptic number.

It is an amenable number.

126290693 is a deficient number, since it is larger than the sum of its proper divisors (1).

126290693 is an equidigital number, since it uses as much as digits as its factorization.

126290693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 126290693 is about 11237.9131959630. The cubic root of 126290693 is about 501.7150345867.

The spelling of 126290693 in words is "one hundred twenty-six million, two hundred ninety thousand, six hundred ninety-three".