1152021055 has 8 divisors (see below), whose sum is σ = 1399924800. Its totient is φ = 909950496.

The previous prime is 1152021047. The next prime is 1152021067. The reversal of 1152021055 is 5501202511.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1152021055 - 2³ = 1152021047 is a prime.

It is a super-2 number, since 2×1152021055² = 2654305022326626050, 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 7 ways as a sum of consecutive naturals, for example, 1457860 + ... + 1458649.

It is an arithmetic number, because the mean of its divisors is an integer number (174990600).

Almost surely, 2^1152021055 is an apocalyptic number.

1152021055 is a deficient number, since it is larger than the sum of its proper divisors (247903745).

1152021055 is an equidigital number, since it uses as much as digits as its factorization.

1152021055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916593.

The product of its (nonzero) digits is 500, while the sum is 22.

The square root of 1152021055 is about 33941.4356649803. The cubic root of 1152021055 is about 1048.3029441852.

Adding to 1152021055 its reverse (5501202511), we get a palindrome (6653223566).

The spelling of 1152021055 in words is "one billion, one hundred fifty-two million, twenty-one thousand, fifty-five".