1155274153705 has 24 divisors (see below), whose sum is σ = 1613060394120. Its totient is φ = 791995438080.

The previous prime is 1155274153679. The next prime is 1155274153753. The reversal of 1155274153705 is 5073514725511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 270380240361 + 884893913344 = 519981^2 + 940688^2 .

It is not a de Polignac number, because 1155274153705 - 2¹³ = 1155274145513 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440595 + ... + 1582615.

It is an arithmetic number, because the mean of its divisors is an integer number (67210849755).

Almost surely, 2^{1155274153705} is an apocalyptic number.

It is an amenable number.

1155274153705 is a deficient number, since it is larger than the sum of its proper divisors (457786240415).

1155274153705 is a wasteful number, since it uses less digits than its factorization.

1155274153705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146169 (or 1146162 counting only the distinct ones).

The product of its (nonzero) digits is 735000, while the sum is 46.

The spelling of 1155274153705 in words is "one trillion, one hundred fifty-five billion, two hundred seventy-four million, one hundred fifty-three thousand, seven hundred five".