126040459 has 4 divisors (see below), whose sum is σ = 126115920. Its totient is φ = 125965000.

The previous prime is 126040429. The next prime is 126040469. The reversal of 126040459 is 954040621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954040621 = 23 ⋅41480027.

It is a cyclic number.

It is not a de Polignac number, because 126040459 - 2⁵ = 126040427 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 126040459.

It is not an unprimeable number, because it can be changed into a prime (126040429) 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, 35167 + ... + 38584.

It is an arithmetic number, because the mean of its divisors is an integer number (31528980).

Almost surely, 2^126040459 is an apocalyptic number.

126040459 is a deficient number, since it is larger than the sum of its proper divisors (75461).

126040459 is an equidigital number, since it uses as much as digits as its factorization.

126040459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75460.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 126040459 is about 11226.7742027708. The cubic root of 126040459 is about 501.3834472835.

The spelling of 126040459 in words is "one hundred twenty-six million, forty thousand, four hundred fifty-nine".