1147135256155 has 48 divisors (see below), whose sum is σ = 1635930241920. Its totient is φ = 769775505408.

The previous prime is 1147135256083. The next prime is 1147135256207. The reversal of 1147135256155 is 5516525317411.

It is not a de Polignac number, because 1147135256155 - 2¹³ = 1147135247963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1924867 + ... + 2449363.

It is an arithmetic number, because the mean of its divisors is an integer number (34081880040).

Almost surely, 2^{1147135256155} is an apocalyptic number.

1147135256155 is a deficient number, since it is larger than the sum of its proper divisors (488794985765).

1147135256155 is a wasteful number, since it uses less digits than its factorization.

1147135256155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524708 (or 524701 counting only the distinct ones).

The product of its digits is 630000, while the sum is 46.

The spelling of 1147135256155 in words is "one trillion, one hundred forty-seven billion, one hundred thirty-five million, two hundred fifty-six thousand, one hundred fifty-five".