125870747 has 4 divisors (see below), whose sum is σ = 128548896. Its totient is φ = 123192600.

The previous prime is 125870741. The next prime is 125870783. The reversal of 125870747 is 747078521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 747078521 = 7 ⋅106725503.

It is a cyclic number.

It is not a de Polignac number, because 125870747 - 2⁸ = 125870491 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125870741) 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, 1339004 + ... + 1339097.

It is an arithmetic number, because the mean of its divisors is an integer number (32137224).

Almost surely, 2^125870747 is an apocalyptic number.

125870747 is a deficient number, since it is larger than the sum of its proper divisors (2678149).

125870747 is an equidigital number, since it uses as much as digits as its factorization.

125870747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2678148.

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 125870747 is about 11219.2132968404. The cubic root of 125870747 is about 501.1583105612.

The spelling of 125870747 in words is "one hundred twenty-five million, eight hundred seventy thousand, seven hundred forty-seven".