1115253 has 12 divisors (see below), whose sum is σ = 1666860. Its totient is φ = 717696.

The previous prime is 1115239. The next prime is 1115267. The reversal of 1115253 is 3525111.

It is an interprime number because it is at equal distance from previous prime (1115239) and next prime (1115267).

It can be written as a sum of positive squares in 2 ways, for example, as 439569 + 675684 = 663^2 + 822^2 .

It is not a de Polignac number, because 1115253 - 2⁴ = 1115237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1876 + ... + 2397.

It is an arithmetic number, because the mean of its divisors is an integer number (138905).

2^1115253 is an apocalyptic number.

It is an amenable number.

1115253 is a deficient number, since it is larger than the sum of its proper divisors (551607).

1115253 is a wasteful number, since it uses less digits than its factorization.

1115253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4308 (or 4305 counting only the distinct ones).

The product of its digits is 150, while the sum is 18.

The square root of 1115253 is about 1056.0553962743. The cubic root of 1115253 is about 103.7029553974.

Adding to 1115253 its sum of digits (18), we get a triangular number (1115271 = T₁₄₉₃).

The spelling of 1115253 in words is "one million, one hundred fifteen thousand, two hundred fifty-three".