1125515 has 8 divisors (see below), whose sum is σ = 1359888. Its totient is φ = 894240.

The previous prime is 1125499. The next prime is 1125529. The reversal of 1125515 is 5155211.

1125515 = 179² + 180² + ... + 208².

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1125515 - 2⁴ = 1125499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125 + ... + 1505.

It is an arithmetic number, because the mean of its divisors is an integer number (169986).

2^1125515 is an apocalyptic number.

1125515 is a deficient number, since it is larger than the sum of its proper divisors (234373).

1125515 is a wasteful number, since it uses less digits than its factorization.

1125515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549.

The product of its digits is 250, while the sum is 20.

The square root of 1125515 is about 1060.9029173303. The cubic root of 1125515 is about 104.0200590007.

The spelling of 1125515 in words is "one million, one hundred twenty-five thousand, five hundred fifteen".