1171788225135 has 128 divisors (see below), whose sum is σ = 2147141716992. Its totient is φ = 540753408000.

The previous prime is 1171788225131. The next prime is 1171788225199. The reversal of 1171788225135 is 5315228871711.

It is not a de Polignac number, because 1171788225135 - 2² = 1171788225131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171788225131) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 38926440 + ... + 38956530.

It is an arithmetic number, because the mean of its divisors is an integer number (16774544664).

Almost surely, 2^{1171788225135} is an apocalyptic number.

1171788225135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1171788225135 is a deficient number, since it is larger than the sum of its proper divisors (975353491857).

1171788225135 is a wasteful number, since it uses less digits than its factorization.

1171788225135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30297.

The product of its digits is 940800, while the sum is 51.

The spelling of 1171788225135 in words is "one trillion, one hundred seventy-one billion, seven hundred eighty-eight million, two hundred twenty-five thousand, one hundred thirty-five".