1115140 has 24 divisors (see below), whose sum is σ = 2522520. Its totient is φ = 411648.

The previous prime is 1115131. The next prime is 1115189. The reversal of 1115140 is 415111.

It can be written as a sum of positive squares in 4 ways, for example, as 166464 + 948676 = 408^2 + 974^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a self number, because there is not a number n which added to its sum of digits gives 1115140.

It is a congruent 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, 1885 + ... + 2404.

It is an arithmetic number, because the mean of its divisors is an integer number (105105).

2^1115140 is an apocalyptic number.

1115140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115140 is an abundant number, since it is smaller than the sum of its proper divisors (1407380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115140 is a wasteful number, since it uses less digits than its factorization.

1115140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4311 (or 4309 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1115140 is about 1056.0018939377. The cubic root of 1115140 is about 103.6994528051.

It can be divided in two parts, 11151 and 40, that multiplied together give a triangular number (446040 = T₉₄₄).

The spelling of 1115140 in words is "one million, one hundred fifteen thousand, one hundred forty".