1132538391945 has 36 divisors (see below), whose sum is σ = 1976331655116. Its totient is φ = 599966117760.

The previous prime is 1132538391923. The next prime is 1132538391949. The reversal of 1132538391945 is 5491938352311.

It is a happy number.

1132538391945 is a `hidden beast` number, since 1 + 1 + 32 + 538 + 39 + 1 + 9 + 45 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 298669901049 + 833868490896 = 546507^2 + 913164^2 .

It is not a de Polignac number, because 1132538391945 - 2¹¹ = 1132538389897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1132538391891 and 1132538391900.

It is not an unprimeable number, because it can be changed into a prime (1132538391949) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 432235 + ... + 1565855.

It is an arithmetic number, because the mean of its divisors is an integer number (54898101531).

Almost surely, 2^{1132538391945} is an apocalyptic number.

1132538391945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1132538391945 is a deficient number, since it is larger than the sum of its proper divisors (843793263171).

1132538391945 is a wasteful number, since it uses less digits than its factorization.

1132538391945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133930 (or 1133778 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 54.

The spelling of 1132538391945 in words is "one trillion, one hundred thirty-two billion, five hundred thirty-eight million, three hundred ninety-one thousand, nine hundred forty-five".