125045643 has 8 divisors (see below), whose sum is σ = 166942528. Its totient is φ = 83256264.

The previous prime is 125045617. The next prime is 125045699. The reversal of 125045643 is 346540521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 125045643 - 2²⁰ = 123997067 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 125045643.

It is not an unprimeable number, because it can be changed into a prime (125045143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24121 + ... + 28842.

It is an arithmetic number, because the mean of its divisors is an integer number (20867816).

Almost surely, 2^125045643 is an apocalyptic number.

125045643 is a deficient number, since it is larger than the sum of its proper divisors (41896885).

125045643 is an equidigital number, since it uses as much as digits as its factorization.

125045643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53753.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 125045643 is about 11182.3809182124. The cubic root of 125045643 is about 500.0608499276.

The spelling of 125045643 in words is "one hundred twenty-five million, forty-five thousand, six hundred forty-three".