1155986252 has 6 divisors (see below), whose sum is σ = 2022975948. Its totient is φ = 577993124.

The previous prime is 1155986207. The next prime is 1155986261. The reversal of 1155986252 is 2526895511.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144498278 + ... + 144498285.

It is an arithmetic number, because the mean of its divisors is an integer number (337162658).

Almost surely, 2^1155986252 is an apocalyptic number.

It is an amenable number.

1155986252 is a deficient number, since it is larger than the sum of its proper divisors (866989696).

1155986252 is a wasteful number, since it uses less digits than its factorization.

1155986252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288996567 (or 288996565 counting only the distinct ones).

The product of its digits is 216000, while the sum is 44.

The square root of 1155986252 is about 33999.7978229283. The cubic root of 1155986252 is about 1049.5043017730.

The spelling of 1155986252 in words is "one billion, one hundred fifty-five million, nine hundred eighty-six thousand, two hundred fifty-two".