1142725 has 12 divisors (see below), whose sum is σ = 1451296. Its totient is φ = 892080.

The previous prime is 1142707. The next prime is 1142737. The reversal of 1142725 is 5272411.

It is a happy number.

It is not a de Polignac number, because 1142725 - 2⁵ = 1142693 is a prime.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1142696 and 1142705.

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, 544 + ... + 1606.

2^1142725 is an apocalyptic number.

It is an amenable number.

1142725 is a deficient number, since it is larger than the sum of its proper divisors (308571).

1142725 is a wasteful number, since it uses less digits than its factorization.

1142725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116 (or 1111 counting only the distinct ones).

The product of its digits is 560, while the sum is 22.

The square root of 1142725 is about 1068.9831617009. The cubic root of 1142725 is about 104.5475619670.

The spelling of 1142725 in words is "one million, one hundred forty-two thousand, seven hundred twenty-five".