1135549854 has 40 divisors (see below), whose sum is σ = 2557727040. Its totient is φ = 376545024.

The previous prime is 1135549837. The next prime is 1135549873. The reversal of 1135549854 is 4589455311.

It is a happy number.

1135549854 is a `hidden beast` number, since 1 + 1 + 3 + 554 + 98 + 5 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13107 + ... + 49425.

It is an arithmetic number, because the mean of its divisors is an integer number (63943176).

Almost surely, 2^1135549854 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1135549854, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1278863520).

1135549854 is an abundant number, since it is smaller than the sum of its proper divisors (1422177186).

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

1135549854 is a wasteful number, since it uses less digits than its factorization.

1135549854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36526 (or 36517 counting only the distinct ones).

The product of its digits is 432000, while the sum is 45.

The square root of 1135549854 is about 33697.9206183408. The cubic root of 1135549854 is about 1043.2828507275.

The spelling of 1135549854 in words is "one billion, one hundred thirty-five million, five hundred forty-nine thousand, eight hundred fifty-four".