125400045 has 8 divisors (see below), whose sum is σ = 200640096. Its totient is φ = 66880016.

The previous prime is 125400029. The next prime is 125400047. The reversal of 125400045 is 540004521.

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

It is a cyclic number.

It is not a de Polignac number, because 125400045 - 2⁴ = 125400029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125399994 and 125400030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125400047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4179987 + ... + 4180016.

It is an arithmetic number, because the mean of its divisors is an integer number (25080012).

Almost surely, 2^125400045 is an apocalyptic number.

125400045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125400045 is a deficient number, since it is larger than the sum of its proper divisors (75240051).

125400045 is an equidigital number, since it uses as much as digits as its factorization.

125400045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8360011.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 125400045 is about 11198.2161525843. The cubic root of 125400045 is about 500.5328253260.

Adding to 125400045 its reverse (540004521), we get a palindrome (665404566).

The spelling of 125400045 in words is "one hundred twenty-five million, four hundred thousand, forty-five".