1173140955 has 128 divisors (see below), whose sum is σ = 2475878400. Its totient is φ = 515953152.

The previous prime is 1173140939. The next prime is 1173140977. The reversal of 1173140955 is 5590413711.

It is a happy number.

It is not a de Polignac number, because 1173140955 - 2⁴ = 1173140939 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2954817 + ... + 2955213.

It is an arithmetic number, because the mean of its divisors is an integer number (19342800).

Almost surely, 2^1173140955 is an apocalyptic number.

1173140955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1173140955 is an abundant number, since it is smaller than the sum of its proper divisors (1302737445).

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

1173140955 is a wasteful number, since it uses less digits than its factorization.

1173140955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 524 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 36.

The square root of 1173140955 is about 34251.1453093178. The cubic root of 1173140955 is about 1054.6703386640.

The spelling of 1173140955 in words is "one billion, one hundred seventy-three million, one hundred forty thousand, nine hundred fifty-five".