125479047 has 4 divisors (see below), whose sum is σ = 167305400. Its totient is φ = 83652696.

The previous prime is 125479033. The next prime is 125479069. The reversal of 125479047 is 740974521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 125479047 - 2⁷ = 125478919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125478996 and 125479014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125479747) 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, 20913172 + ... + 20913177.

It is an arithmetic number, because the mean of its divisors is an integer number (41826350).

Almost surely, 2^125479047 is an apocalyptic number.

125479047 is a deficient number, since it is larger than the sum of its proper divisors (41826353).

125479047 is an equidigital number, since it uses as much as digits as its factorization.

125479047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41826352.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 125479047 is about 11201.7430340104. The cubic root of 125479047 is about 500.6379151158.

The spelling of 125479047 in words is "one hundred twenty-five million, four hundred seventy-nine thousand, forty-seven".