1152211556 has 6 divisors (see below), whose sum is σ = 2016370230. Its totient is φ = 576105776.

The previous prime is 1152211553. The next prime is 1152211559. The reversal of 1152211556 is 6551122511.

It is an interprime number because it is at equal distance from previous prime (1152211553) and next prime (1152211559).

It can be written as a sum of positive squares in only one way, i.e., 1070598400 + 81613156 = 32720^2 + 9034^2 .

It is a super-2 number, since 2×1152211556² = 2655182939559882272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1152211553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144026441 + ... + 144026448.

It is an arithmetic number, because the mean of its divisors is an integer number (336061705).

Almost surely, 2^1152211556 is an apocalyptic number.

It is an amenable number.

1152211556 is a deficient number, since it is larger than the sum of its proper divisors (864158674).

1152211556 is a wasteful number, since it uses less digits than its factorization.

1152211556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288052893 (or 288052891 counting only the distinct ones).

The product of its digits is 3000, while the sum is 29.

The square root of 1152211556 is about 33944.2418680989. The cubic root of 1152211556 is about 1048.3607243075.

The spelling of 1152211556 in words is "one billion, one hundred fifty-two million, two hundred eleven thousand, five hundred fifty-six".