126023449 has 4 divisors (see below), whose sum is σ = 127904464. Its totient is φ = 124142436.

The previous prime is 126023437. The next prime is 126023459. The reversal of 126023449 is 944320621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126023449 - 2⁹ = 126022937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 126023449.

It is not an unprimeable number, because it can be changed into a prime (126023459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 940407 + ... + 940540.

It is an arithmetic number, because the mean of its divisors is an integer number (31976116).

Almost surely, 2^126023449 is an apocalyptic number.

It is an amenable number.

126023449 is a deficient number, since it is larger than the sum of its proper divisors (1881015).

126023449 is an equidigital number, since it uses as much as digits as its factorization.

126023449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1881014.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 126023449 is about 11226.0166132070. The cubic root of 126023449 is about 501.3608912561.

The spelling of 126023449 in words is "one hundred twenty-six million, twenty-three thousand, four hundred forty-nine".