1153540404 has 36 divisors (see below), whose sum is σ = 2917483296. Its totient is φ = 384303888.

The previous prime is 1153540397. The next prime is 1153540441. The reversal of 1153540404 is 4040453511.

It is a happy number.

1153540404 is a `hidden beast` number, since 115 + 3 + 540 + 4 + 0 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67297 + ... + 82679.

Almost surely, 2^1153540404 is an apocalyptic number.

It is an amenable number.

1153540404 is an abundant number, since it is smaller than the sum of its proper divisors (1763942892).

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

1153540404 is a wasteful number, since it uses less digits than its factorization.

1153540404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17476 (or 17471 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1153540404 is about 33963.8102102812. The cubic root of 1153540404 is about 1048.7635950094.

Adding to 1153540404 its reverse (4040453511), we get a palindrome (5193993915).

The spelling of 1153540404 in words is "one billion, one hundred fifty-three million, five hundred forty thousand, four hundred four".