1181563134 has 16 divisors (see below), whose sum is σ = 2367026688. Its totient is φ = 393204312.

The previous prime is 1181563129. The next prime is 1181563151. The reversal of 1181563134 is 4313651811.

It is a junction number, because it is equal to n+sod(n) for n = 1181563095 and 1181563104.

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, 158572 + ... + 165855.

It is an arithmetic number, because the mean of its divisors is an integer number (147939168).

Almost surely, 2^1181563134 is an apocalyptic number.

1181563134 is an abundant number, since it is smaller than the sum of its proper divisors (1185463554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1181563134 is a wasteful number, since it uses less digits than its factorization.

1181563134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325039.

The product of its digits is 8640, while the sum is 33.

The square root of 1181563134 is about 34373.8728397020. The cubic root of 1181563134 is about 1057.1882089156.

The spelling of 1181563134 in words is "one billion, one hundred eighty-one million, five hundred sixty-three thousand, one hundred thirty-four".