1143725 has 12 divisors (see below), whose sum is σ = 1547520. Its totient is φ = 831600.

The previous prime is 1143719. The next prime is 1143749. The reversal of 1143725 is 5273411.

It is not a de Polignac number, because 1143725 - 2⁶ = 1143661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1143725.

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, 1805 + ... + 2354.

It is an arithmetic number, because the mean of its divisors is an integer number (128960).

2^1143725 is an apocalyptic number.

It is an amenable number.

1143725 is a deficient number, since it is larger than the sum of its proper divisors (403795).

1143725 is a wasteful number, since it uses less digits than its factorization.

1143725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180 (or 4175 counting only the distinct ones).

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

The square root of 1143725 is about 1069.4507936319. The cubic root of 1143725 is about 104.5780496406.

The spelling of 1143725 in words is "one million, one hundred forty-three thousand, seven hundred twenty-five".