126340693 has 2 divisors, whose sum is σ = 126340694. Its totient is φ = 126340692.

The previous prime is 126340637. The next prime is 126340763. The reversal of 126340693 is 396043621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78978769 + 47361924 = 8887^2 + 6882^2 .

It is an emirp because it is prime and its reverse (396043621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126340693 - 2¹⁷ = 126209621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126340603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63170346 + 63170347.

It is an arithmetic number, because the mean of its divisors is an integer number (63170347).

Almost surely, 2^126340693 is an apocalyptic number.

It is an amenable number.

126340693 is a deficient number, since it is larger than the sum of its proper divisors (1).

126340693 is an equidigital number, since it uses as much as digits as its factorization.

126340693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 126340693 is about 11240.1375881259. The cubic root of 126340693 is about 501.7812375171.

The spelling of 126340693 in words is "one hundred twenty-six million, three hundred forty thousand, six hundred ninety-three".