126092821 has 2 divisors, whose sum is σ = 126092822. Its totient is φ = 126092820.

The previous prime is 126092803. The next prime is 126092881. The reversal of 126092821 is 128290621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101787921 + 24304900 = 10089^2 + 4930^2 .

It is a cyclic number.

It is not a de Polignac number, because 126092821 - 2⁵ = 126092789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126092801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63046410 + 63046411.

It is an arithmetic number, because the mean of its divisors is an integer number (63046411).

Almost surely, 2^126092821 is an apocalyptic number.

It is an amenable number.

126092821 is a deficient number, since it is larger than the sum of its proper divisors (1).

126092821 is an equidigital number, since it uses as much as digits as its factorization.

126092821 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 31.

The square root of 126092821 is about 11229.1059750988. The cubic root of 126092821 is about 501.4528689215.

The spelling of 126092821 in words is "one hundred twenty-six million, ninety-two thousand, eight hundred twenty-one".