1355140 has 12 divisors (see below), whose sum is σ = 2845836. Its totient is φ = 542048.

The previous prime is 1355131. The next prime is 1355153. The reversal of 1355140 is 415531.

It can be written as a sum of positive squares in 2 ways, for example, as 968256 + 386884 = 984^2 + 622^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33859 + ... + 33898.

It is an arithmetic number, because the mean of its divisors is an integer number (237153).

2^1355140 is an apocalyptic number.

1355140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1355140 is an abundant number, since it is smaller than the sum of its proper divisors (1490696).

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

1355140 is a wasteful number, since it uses less digits than its factorization.

1355140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67766 (or 67764 counting only the distinct ones).

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

The square root of 1355140 is about 1164.1048062782. The cubic root of 1355140 is about 110.6610334063.

The spelling of 1355140 in words is "one million, three hundred fifty-five thousand, one hundred forty".