126454643 has 6 divisors (see below), whose sum is σ = 147100356. Its totient is φ = 108389652.

The previous prime is 126454639. The next prime is 126454649. The reversal of 126454643 is 346454621.

It is not a de Polignac number, because 126454643 - 2² = 126454639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126454649) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1290305 + ... + 1290402.

It is an arithmetic number, because the mean of its divisors is an integer number (24516726).

Almost surely, 2^126454643 is an apocalyptic number.

126454643 is a deficient number, since it is larger than the sum of its proper divisors (20645713).

126454643 is an equidigital number, since it uses as much as digits as its factorization.

126454643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2580721 (or 2580714 counting only the distinct ones).

The product of its digits is 69120, while the sum is 35.

The square root of 126454643 is about 11245.2053338301. The cubic root of 126454643 is about 501.9320487592.

The spelling of 126454643 in words is "one hundred twenty-six million, four hundred fifty-four thousand, six hundred forty-three".