1115412215 has 16 divisors (see below), whose sum is σ = 1362245472. Its totient is φ = 876632064.

The previous prime is 1115412149. The next prime is 1115412223. The reversal of 1115412215 is 5122145111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1115412215 - 2²⁸ = 846976759 is a prime.

It is a super-4 number, since 4×1115412215⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58052 + ... + 74838.

It is an arithmetic number, because the mean of its divisors is an integer number (85140342).

Almost surely, 2^1115412215 is an apocalyptic number.

1115412215 is a deficient number, since it is larger than the sum of its proper divisors (246833257).

1115412215 is a wasteful number, since it uses less digits than its factorization.

1115412215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17026.

The product of its digits is 400, while the sum is 23.

The square root of 1115412215 is about 33397.7875764249. The cubic root of 1115412215 is about 1037.0789008649.

Adding to 1115412215 its reverse (5122145111), we get a palindrome (6237557326).

The spelling of 1115412215 in words is "one billion, one hundred fifteen million, four hundred twelve thousand, two hundred fifteen".