1162255988 has 12 divisors (see below), whose sum is σ = 2088919812. Its totient is φ = 565421760.

The previous prime is 1162255957. The next prime is 1162255993. The reversal of 1162255988 is 8895522611.

It can be written as a sum of positive squares in 2 ways, for example, as 428821264 + 733434724 = 20708^2 + 27082^2 .

It is a super-2 number, since 2×1162255988² = 2701677963283712288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3926393 + ... + 3926688.

It is an arithmetic number, because the mean of its divisors is an integer number (174076651).

Almost surely, 2^1162255988 is an apocalyptic number.

It is an amenable number.

1162255988 is a deficient number, since it is larger than the sum of its proper divisors (926663824).

1162255988 is a wasteful number, since it uses less digits than its factorization.

1162255988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7853122 (or 7853120 counting only the distinct ones).

The product of its digits is 345600, while the sum is 47.

The square root of 1162255988 is about 34091.8756890846. The cubic root of 1162255988 is about 1051.3982846218.

The spelling of 1162255988 in words is "one billion, one hundred sixty-two million, two hundred fifty-five thousand, nine hundred eighty-eight".