125279047 has 2 divisors, whose sum is σ = 125279048. Its totient is φ = 125279046.

The previous prime is 125279039. The next prime is 125279093. The reversal of 125279047 is 740972521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125279047 - 2³ = 125279039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125278997 and 125279015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125279747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62639523 + 62639524.

It is an arithmetic number, because the mean of its divisors is an integer number (62639524).

Almost surely, 2^125279047 is an apocalyptic number.

125279047 is a deficient number, since it is larger than the sum of its proper divisors (1).

125279047 is an equidigital number, since it uses as much as digits as its factorization.

125279047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 125279047 is about 11192.8122918237. The cubic root of 125279047 is about 500.3717861483.

The spelling of 125279047 in words is "one hundred twenty-five million, two hundred seventy-nine thousand, forty-seven".