725149 has 2 divisors, whose sum is σ = 725150. Its totient is φ = 725148.

The previous prime is 725147. The next prime is 725159. The reversal of 725149 is 941527.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 573049 + 152100 = 757^2 + 390^2 .

It is a cyclic number.

It is not a de Polignac number, because 725149 - 2¹ = 725147 is a prime.

Together with 725147, it forms a pair of twin primes.

It is equal to p₅₈₄₂₉ and since 725149 and 58429 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362574 + 362575.

It is an arithmetic number, because the mean of its divisors is an integer number (362575).

2⁷²⁵¹⁴⁹ is an apocalyptic number.

It is an amenable number.

725149 is a deficient number, since it is larger than the sum of its proper divisors (1).

725149 is an equidigital number, since it uses as much as digits as its factorization.

725149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 725149 is about 851.5568096140. The cubic root of 725149 is about 89.8412427555.

The spelling of 725149 in words is "seven hundred twenty-five thousand, one hundred forty-nine".