1171507255 has 8 divisors (see below), whose sum is σ = 1410997824. Its totient is φ = 933746400.

The previous prime is 1171507241. The next prime is 1171507279. The reversal of 1171507255 is 5527051711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1171507255 - 2⁵ = 1171507223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1171507255.

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, 430936 + ... + 433645.

It is an arithmetic number, because the mean of its divisors is an integer number (176374728).

Almost surely, 2^1171507255 is an apocalyptic number.

1171507255 is a deficient number, since it is larger than the sum of its proper divisors (239490569).

1171507255 is an equidigital number, since it uses as much as digits as its factorization.

1171507255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864857.

The product of its (nonzero) digits is 12250, while the sum is 34.

The square root of 1171507255 is about 34227.2881631017. The cubic root of 1171507255 is about 1054.1805380821.

Adding to 1171507255 its reverse (5527051711), we get a palindrome (6698558966).

The spelling of 1171507255 in words is "one billion, one hundred seventy-one million, five hundred seven thousand, two hundred fifty-five".