1163135420 has 12 divisors (see below), whose sum is σ = 2442584424. Its totient is φ = 465254160.

The previous prime is 1163135417. The next prime is 1163135453. The reversal of 1163135420 is 245313611.

It is a self number, because there is not a number n which added to its sum of digits gives 1163135420.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29078366 + ... + 29078405.

It is an arithmetic number, because the mean of its divisors is an integer number (203548702).

Almost surely, 2^1163135420 is an apocalyptic number.

1163135420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1163135420 is an abundant number, since it is smaller than the sum of its proper divisors (1279449004).

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

1163135420 is a wasteful number, since it uses less digits than its factorization.

1163135420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58156780 (or 58156778 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1163135420 is about 34104.7712204612. The cubic root of 1163135420 is about 1051.6634012550.

The spelling of 1163135420 in words is "one billion, one hundred sixty-three million, one hundred thirty-five thousand, four hundred twenty".