1155242232 has 48 divisors (see below), whose sum is σ = 3159177840. Its totient is φ = 381339648.

The previous prime is 1155242227. The next prime is 1155242239. The reversal of 1155242232 is 2322425511.

1155242232 is a `hidden beast` number, since 115 + 524 + 2 + 23 + 2 = 666.

1155242232 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1155242232² = 2669169229192683648, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1155242196 and 1155242205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155242239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70473 + ... + 85304.

It is an arithmetic number, because the mean of its divisors is an integer number (65816205).

Almost surely, 2^1155242232 is an apocalyptic number.

1155242232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1155242232 is an abundant number, since it is smaller than the sum of its proper divisors (2003935608).

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

1155242232 is a wasteful number, since it uses less digits than its factorization.

1155242232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155892 (or 155885 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 1155242232 is about 33988.8545261531. The cubic root of 1155242232 is about 1049.2790915469.

Adding to 1155242232 its reverse (2322425511), we get a palindrome (3477667743).

The spelling of 1155242232 in words is "one billion, one hundred fifty-five million, two hundred forty-two thousand, two hundred thirty-two".