125453443543 has 4 divisors (see below), whose sum is σ = 125693316808. Its totient is φ = 125213570280.

The previous prime is 125453443529. The next prime is 125453443547. The reversal of 125453443543 is 345344354521.

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-125453443543 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 125453443543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125453443547) 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, 119935848 + ... + 119936893.

It is an arithmetic number, because the mean of its divisors is an integer number (31423329202).

Almost surely, 2^125453443543 is an apocalyptic number.

125453443543 is a deficient number, since it is larger than the sum of its proper divisors (239873265).

125453443543 is an equidigital number, since it uses as much as digits as its factorization.

125453443543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239873264.

The product of its digits is 1728000, while the sum is 43.

The spelling of 125453443543 in words is "one hundred twenty-five billion, four hundred fifty-three million, four hundred forty-three thousand, five hundred forty-three".