1155310090 has 32 divisors (see below), whose sum is σ = 2277491904. Its totient is φ = 418467840.

The previous prime is 1155310087. The next prime is 1155310099. The reversal of 1155310090 is 900135511.

It is not an unprimeable number, because it can be changed into a prime (1155310099) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7837 + ... + 48703.

It is an arithmetic number, because the mean of its divisors is an integer number (71171622).

Almost surely, 2^1155310090 is an apocalyptic number.

1155310090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155310090 is a deficient number, since it is larger than the sum of its proper divisors (1122181814).

1155310090 is a wasteful number, since it uses less digits than its factorization.

1155310090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41142.

The product of its (nonzero) digits is 675, while the sum is 25.

The square root of 1155310090 is about 33989.8527504901. The cubic root of 1155310090 is about 1049.2996357481.

The spelling of 1155310090 in words is "one billion, one hundred fifty-five million, three hundred ten thousand, ninety".