1151213452 has 12 divisors (see below), whose sum is σ = 2014961760. Its totient is φ = 575510096.

The previous prime is 1151213407. The next prime is 1151213473. The reversal of 1151213452 is 2543121511.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7158 + ... + 48514.

It is an arithmetic number, because the mean of its divisors is an integer number (167913480).

Almost surely, 2^1151213452 is an apocalyptic number.

It is an amenable number.

1151213452 is a deficient number, since it is larger than the sum of its proper divisors (863748308).

1151213452 is a wasteful number, since it uses less digits than its factorization.

1151213452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48320 (or 48318 counting only the distinct ones).

The product of its digits is 1200, while the sum is 25.

The square root of 1151213452 is about 33929.5365721373. The cubic root of 1151213452 is about 1048.0579224731.

Adding to 1151213452 its reverse (2543121511), we get a palindrome (3694334963).

It can be divided in two parts, 11512 and 13452, that added together give a square (24964 = 158²).

The spelling of 1151213452 in words is "one billion, one hundred fifty-one million, two hundred thirteen thousand, four hundred fifty-two".