125345251543 has 8 divisors (see below), whose sum is σ = 126524520720. Its totient is φ = 124166127360.

The previous prime is 125345251501. The next prime is 125345251567. The reversal of 125345251543 is 345152543521.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125345251543 is a prime.

It is a super-2 number, since 2×125345251543² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125345251496 and 125345251505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125345251573) 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, 2589063 + ... + 2637031.

It is an arithmetic number, because the mean of its divisors is an integer number (15815565090).

Almost surely, 2^125345251543 is an apocalyptic number.

125345251543 is a deficient number, since it is larger than the sum of its proper divisors (1179269177).

125345251543 is a wasteful number, since it uses less digits than its factorization.

125345251543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72497.

The product of its digits is 360000, while the sum is 40.

The spelling of 125345251543 in words is "one hundred twenty-five billion, three hundred forty-five million, two hundred fifty-one thousand, five hundred forty-three".