1349725 has 12 divisors (see below), whose sum is σ = 1802836. Its totient is φ = 996480.

The previous prime is 1349713. The next prime is 1349737. The reversal of 1349725 is 5279431.

1349725 = 821² + 822².

It is an interprime number because it is at equal distance from previous prime (1349713) and next prime (1349737).

It can be written as a sum of positive squares in 6 ways, for example, as 527076 + 822649 = 726^2 + 907^2 .

It is not a de Polignac number, because 1349725 - 2¹⁷ = 1218653 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1752 + ... + 2401.

2^1349725 is an apocalyptic number.

1349725 is the 822-nd centered square number.

It is an amenable number.

1349725 is a deficient number, since it is larger than the sum of its proper divisors (453111).

1349725 is a wasteful number, since it uses less digits than its factorization.

1349725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4176 (or 4171 counting only the distinct ones).

The product of its digits is 7560, while the sum is 31.

The square root of 1349725 is about 1161.7766566772. The cubic root of 1349725 is about 110.5134399410.

The spelling of 1349725 in words is "one million, three hundred forty-nine thousand, seven hundred twenty-five".