1145525 has 6 divisors (see below), whose sum is σ = 1420482. Its totient is φ = 916400.

The previous prime is 1145509. The next prime is 1145533. The reversal of 1145525 is 5255411.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 386884 + 758641 = 622^2 + 871^2 .

It is not a de Polignac number, because 1145525 - 2⁴ = 1145509 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145525.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22886 + ... + 22935.

It is an arithmetic number, because the mean of its divisors is an integer number (236747).

2^1145525 is an apocalyptic number.

It is an amenable number.

1145525 is a deficient number, since it is larger than the sum of its proper divisors (274957).

1145525 is an equidigital number, since it uses as much as digits as its factorization.

1145525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45831 (or 45826 counting only the distinct ones).

The product of its digits is 1000, while the sum is 23.

The square root of 1145525 is about 1070.2920162273. The cubic root of 1145525 is about 104.6328827005.

The spelling of 1145525 in words is "one million, one hundred forty-five thousand, five hundred twenty-five".