125645673 has 8 divisors (see below), whose sum is σ = 172055488. Its totient is φ = 81499824.

The previous prime is 125645671. The next prime is 125645677. The reversal of 125645673 is 376546521.

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

It is not a de Polignac number, because 125645673 - 2¹ = 125645671 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125645671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 565861 + ... + 566082.

It is an arithmetic number, because the mean of its divisors is an integer number (21506936).

Almost surely, 2^125645673 is an apocalyptic number.

It is an amenable number.

125645673 is a deficient number, since it is larger than the sum of its proper divisors (46409815).

125645673 is a wasteful number, since it uses less digits than its factorization.

125645673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131983.

The product of its digits is 151200, while the sum is 39.

The square root of 125645673 is about 11209.1780697784. The cubic root of 125645673 is about 500.8594192840.

The spelling of 125645673 in words is "one hundred twenty-five million, six hundred forty-five thousand, six hundred seventy-three".