125537260723 has 4 divisors (see below), whose sum is σ = 143471155120. Its totient is φ = 107603366328.

The previous prime is 125537260663. The next prime is 125537260729. The reversal of 125537260723 is 327062735521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 327062735521 = 32359 ⋅10107319.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125537260723 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 125537260723.

It is not an unprimeable number, because it can be changed into a prime (125537260729) 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, 8966947188 + ... + 8966947201.

It is an arithmetic number, because the mean of its divisors is an integer number (35867788780).

Almost surely, 2^125537260723 is an apocalyptic number.

125537260723 is a deficient number, since it is larger than the sum of its proper divisors (17933894397).

125537260723 is an equidigital number, since it uses as much as digits as its factorization.

125537260723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17933894396.

The product of its (nonzero) digits is 529200, while the sum is 43.

The spelling of 125537260723 in words is "one hundred twenty-five billion, five hundred thirty-seven million, two hundred sixty thousand, seven hundred twenty-three".