1725345 has 24 divisors (see below), whose sum is σ = 3122496. Its totient is φ = 879648.

The previous prime is 1725343. The next prime is 1725359. The reversal of 1725345 is 5435271.

It is a happy number.

It is not a de Polignac number, because 1725345 - 2¹ = 1725343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1725343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202 + ... + 1868.

It is an arithmetic number, because the mean of its divisors is an integer number (130104).

2^1725345 is an apocalyptic number.

1725345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1725345 is a deficient number, since it is larger than the sum of its proper divisors (1397151).

1725345 is a wasteful number, since it uses less digits than its factorization.

1725345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701 (or 1698 counting only the distinct ones).

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

The square root of 1725345 is about 1313.5238863454. The cubic root of 1725345 is about 119.9385101637.

The spelling of 1725345 in words is "one million, seven hundred twenty-five thousand, three hundred forty-five".