1155222652 has 12 divisors (see below), whose sum is σ = 2029156920. Its totient is φ = 575463536.

The previous prime is 1155222637. The next prime is 1155222659. The reversal of 1155222652 is 2562225511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155222659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 535738 + ... + 537889.

It is an arithmetic number, because the mean of its divisors is an integer number (169096410).

Almost surely, 2^1155222652 is an apocalyptic number.

It is an amenable number.

1155222652 is a deficient number, since it is larger than the sum of its proper divisors (873934268).

1155222652 is a wasteful number, since it uses less digits than its factorization.

1155222652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073900 (or 1073898 counting only the distinct ones).

The product of its digits is 12000, while the sum is 31.

The square root of 1155222652 is about 33988.5664893358. The cubic root of 1155222652 is about 1049.2731634970.

The spelling of 1155222652 in words is "one billion, one hundred fifty-five million, two hundred twenty-two thousand, six hundred fifty-two".