125454643 has 4 divisors (see below), whose sum is σ = 125480808. Its totient is φ = 125428480.

The previous prime is 125454631. The next prime is 125454647. The reversal of 125454643 is 346454521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125454643 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125454599 and 125454608.

It is not an unprimeable number, because it can be changed into a prime (125454647) 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, 3598 + ... + 16243.

It is an arithmetic number, because the mean of its divisors is an integer number (31370202).

Almost surely, 2^125454643 is an apocalyptic number.

125454643 is a deficient number, since it is larger than the sum of its proper divisors (26165).

125454643 is an equidigital number, since it uses as much as digits as its factorization.

125454643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26164.

The product of its digits is 57600, while the sum is 34.

The square root of 125454643 is about 11200.6536862810. The cubic root of 125454643 is about 500.6054572139.

The spelling of 125454643 in words is "one hundred twenty-five million, four hundred fifty-four thousand, six hundred forty-three".