125972547 has 8 divisors (see below), whose sum is σ = 168099840. Its totient is φ = 83913480.

The previous prime is 125972543. The next prime is 125972557. The reversal of 125972547 is 745279521.

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

It is not a de Polignac number, because 125972547 - 2² = 125972543 is a prime.

It is a super-3 number, since 3×125972547³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 125972499 and 125972508.

It is not an unprimeable number, because it can be changed into a prime (125972543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12579 + ... + 20252.

It is an arithmetic number, because the mean of its divisors is an integer number (21012480).

Almost surely, 2^125972547 is an apocalyptic number.

125972547 is a deficient number, since it is larger than the sum of its proper divisors (42127293).

125972547 is a wasteful number, since it uses less digits than its factorization.

125972547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34113.

The product of its digits is 176400, while the sum is 42.

The square root of 125972547 is about 11223.7492398931. The cubic root of 125972547 is about 501.2933807808.

The spelling of 125972547 in words is "one hundred twenty-five million, nine hundred seventy-two thousand, five hundred forty-seven".