1345725 has 18 divisors (see below), whose sum is σ = 2410746. Its totient is φ = 717600.

The previous prime is 1345711. The next prime is 1345733. The reversal of 1345725 is 5275431.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 4761 + 1340964 = 69^2 + 1158^2 .

It is not a de Polignac number, because 1345725 - 2⁵ = 1345693 is a prime.

1345725 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2766 + ... + 3215.

2^1345725 is an apocalyptic number.

1345725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1345725 is a deficient number, since it is larger than the sum of its proper divisors (1065021).

1345725 is a wasteful number, since it uses less digits than its factorization.

1345725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5997 (or 5989 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 1345725 is about 1160.0538780591. The cubic root of 1345725 is about 110.4041606025.

The spelling of 1345725 in words is "one million, three hundred forty-five thousand, seven hundred twenty-five".