1135540 has 24 divisors (see below), whose sum is σ = 2725632. Its totient is φ = 389280.

The previous prime is 1135531. The next prime is 1135597. The reversal of 1135540 is 455311.

1135540 = T₂₁₈ + T₂₁₉ + ... + T₂₅₇.

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, 3916 + ... + 4195.

It is an arithmetic number, because the mean of its divisors is an integer number (113568).

2^1135540 is an apocalyptic number.

1135540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1135540 is an abundant number, since it is smaller than the sum of its proper divisors (1590092).

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

1135540 is a wasteful number, since it uses less digits than its factorization.

1135540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8127 (or 8125 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1135540 is about 1065.6171920535. The cubic root of 1135540 is about 104.3279832942.

The spelling of 1135540 in words is "one million, one hundred thirty-five thousand, five hundred forty".