725147 has 2 divisors, whose sum is σ = 725148. Its totient is φ = 725146.

The previous prime is 725119. The next prime is 725149. The reversal of 725147 is 741527.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 725147 - 2¹⁰ = 724123 is a prime.

Together with 725149, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 725147.

It is not a weakly prime, because it can be changed into another prime (725149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362573 + 362574.

It is an arithmetic number, because the mean of its divisors is an integer number (362574).

2⁷²⁵¹⁴⁷ is an apocalyptic number.

725147 is a deficient number, since it is larger than the sum of its proper divisors (1).

725147 is an equidigital number, since it uses as much as digits as its factorization.

725147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1960, while the sum is 26.

The square root of 725147 is about 851.5556352934. Note that the first 3 decimals coincide. The cubic root of 725147 is about 89.8411601598.

The spelling of 725147 in words is "seven hundred twenty-five thousand, one hundred forty-seven".