1431725 has 6 divisors (see below), whose sum is σ = 1775370. Its totient is φ = 1145360.

The previous prime is 1431721. The next prime is 1431733. The reversal of 1431725 is 5271341.

It can be written as a sum of positive squares in 3 ways, for example, as 376996 + 1054729 = 614^2 + 1027^2 .

It is not a de Polignac number, because 1431725 - 2² = 1431721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1431725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28610 + ... + 28659.

It is an arithmetic number, because the mean of its divisors is an integer number (295895).

2^1431725 is an apocalyptic number.

It is an amenable number.

1431725 is a deficient number, since it is larger than the sum of its proper divisors (343645).

1431725 is an equidigital number, since it uses as much as digits as its factorization.

1431725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57279 (or 57274 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 1431725 is about 1196.5471156624. The cubic root of 1431725 is about 112.7076002115.

The spelling of 1431725 in words is "one million, four hundred thirty-one thousand, seven hundred twenty-five".