1115453212 has 6 divisors (see below), whose sum is σ = 1952043128. Its totient is φ = 557726604.

The previous prime is 1115453189. The next prime is 1115453263. The reversal of 1115453212 is 2123545111.

It is a super-2 number, since 2×1115453212² = 2488471736322233888, 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 as a sum of consecutive naturals, namely, 139431648 + ... + 139431655.

Almost surely, 2^1115453212 is an apocalyptic number.

It is an amenable number.

1115453212 is a deficient number, since it is larger than the sum of its proper divisors (836589916).

1115453212 is a wasteful number, since it uses less digits than its factorization.

1115453212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278863307 (or 278863305 counting only the distinct ones).

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

The square root of 1115453212 is about 33398.4013389863. The cubic root of 1115453212 is about 1037.0916066617.

Adding to 1115453212 its reverse (2123545111), we get a palindrome (3238998323).

The spelling of 1115453212 in words is "one billion, one hundred fifteen million, four hundred fifty-three thousand, two hundred twelve".