1129255425539 has 4 divisors (see below), whose sum is σ = 1188689921640. Its totient is φ = 1069820929440.

The previous prime is 1129255425527. The next prime is 1129255425541. The reversal of 1129255425539 is 9355245529211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1129255425539 - 2⁴ = 1129255425523 is a prime.

It is a super-2 number, since 2×1129255425539² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1129255415539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29717248022 + ... + 29717248059.

It is an arithmetic number, because the mean of its divisors is an integer number (297172480410).

Almost surely, 2^{1129255425539} is an apocalyptic number.

1129255425539 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1129255425539 is a deficient number, since it is larger than the sum of its proper divisors (59434496101).

1129255425539 is an equidigital number, since it uses as much as digits as its factorization.

1129255425539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59434496100.

The product of its digits is 4860000, while the sum is 53.

The spelling of 1129255425539 in words is "one trillion, one hundred twenty-nine billion, two hundred fifty-five million, four hundred twenty-five thousand, five hundred thirty-nine".