1155552412 has 24 divisors (see below), whose sum is σ = 2432743040. Its totient is φ = 469171440.

The previous prime is 1155552389. The next prime is 1155552427. The reversal of 1155552412 is 2142555511.

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, 1085514 + ... + 1086577.

Almost surely, 2^1155552412 is an apocalyptic number.

It is an amenable number.

1155552412 is an abundant number, since it is smaller than the sum of its proper divisors (1277190628).

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

1155552412 is a wasteful number, since it uses less digits than its factorization.

1155552412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2172121 (or 2172119 counting only the distinct ones).

The product of its digits is 10000, while the sum is 31.

The square root of 1155552412 is about 33993.4171862730. The cubic root of 1155552412 is about 1049.3729928532.

The spelling of 1155552412 in words is "one billion, one hundred fifty-five million, five hundred fifty-two thousand, four hundred twelve".