125623261045 has 16 divisors (see below), whose sum is σ = 157311786240. Its totient is φ = 96123227904.

The previous prime is 125623261003. The next prime is 125623261051. The reversal of 125623261045 is 540162326521.

It is a cyclic number.

It is not a de Polignac number, because 125623261045 - 2¹⁵ = 125623228277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125623260995 and 125623261013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3276496 + ... + 3314614.

It is an arithmetic number, because the mean of its divisors is an integer number (9831986640).

Almost surely, 2^125623261045 is an apocalyptic number.

It is an amenable number.

125623261045 is a deficient number, since it is larger than the sum of its proper divisors (31688525195).

125623261045 is a wasteful number, since it uses less digits than its factorization.

125623261045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66804.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 125623261045 its reverse (540162326521), we get a palindrome (665785587566).

The spelling of 125623261045 in words is "one hundred twenty-five billion, six hundred twenty-three million, two hundred sixty-one thousand, forty-five".