125656347 has 4 divisors (see below), whose sum is σ = 167541800. Its totient is φ = 83770896.

The previous prime is 125656331. The next prime is 125656357. The reversal of 125656347 is 743656521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743656521 = 3 ⋅247885507.

It is not a de Polignac number, because 125656347 - 2⁴ = 125656331 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 (125656327) 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, 20942722 + ... + 20942727.

It is an arithmetic number, because the mean of its divisors is an integer number (41885450).

Almost surely, 2^125656347 is an apocalyptic number.

125656347 is a deficient number, since it is larger than the sum of its proper divisors (41885453).

125656347 is an equidigital number, since it uses as much as digits as its factorization.

125656347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41885452.

The product of its digits is 151200, while the sum is 39.

The square root of 125656347 is about 11209.6541873512. The cubic root of 125656347 is about 500.8736020832.

The spelling of 125656347 in words is "one hundred twenty-five million, six hundred fifty-six thousand, three hundred forty-seven".