10126409 has 2 divisors, whose sum is σ = 10126410. Its totient is φ = 10126408.

The previous prime is 10126399. The next prime is 10126421. The reversal of 10126409 is 90462101.

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., 9120400 + 1006009 = 3020^2 + 1003^2 .

It is an emirp because it is prime and its reverse (90462101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10126409 - 2¹² = 10122313 is a prime.

It is not a weakly prime, because it can be changed into another prime (10126439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5063204 + 5063205.

It is an arithmetic number, because the mean of its divisors is an integer number (5063205).

Almost surely, 2^10126409 is an apocalyptic number.

It is an amenable number.

10126409 is a deficient number, since it is larger than the sum of its proper divisors (1).

10126409 is an equidigital number, since it uses as much as digits as its factorization.

10126409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 10126409 is about 3182.2019106273. The cubic root of 10126409 is about 216.3474702888.

The spelling of 10126409 in words is "ten million, one hundred twenty-six thousand, four hundred nine".