1129252655 has 8 divisors (see below), whose sum is σ = 1398816384. Its totient is φ = 874260000.

The previous prime is 1129252637. The next prime is 1129252667. The reversal of 1129252655 is 5562529211.

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

It is not a de Polignac number, because 1129252655 - 2²⁰ = 1128204079 is a prime.

It is a Duffinian number.

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, 3642596 + ... + 3642905.

It is an arithmetic number, because the mean of its divisors is an integer number (174852048).

Almost surely, 2^1129252655 is an apocalyptic number.

1129252655 is a deficient number, since it is larger than the sum of its proper divisors (269563729).

1129252655 is an equidigital number, since it uses as much as digits as its factorization.

1129252655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7285537.

The product of its digits is 54000, while the sum is 38.

The square root of 1129252655 is about 33604.3547029250. The cubic root of 1129252655 is about 1041.3507642676.

The spelling of 1129252655 in words is "one billion, one hundred twenty-nine million, two hundred fifty-two thousand, six hundred fifty-five".