1115687412 has 48 divisors (see below), whose sum is σ = 3305742720. Its totient is φ = 318767616.

The previous prime is 1115687393. The next prime is 1115687413. The reversal of 1115687412 is 2147865111.

1115687412 is a `hidden beast` number, since 1 + 11 + 568 + 74 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115687413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 737133 + ... + 738644.

It is an arithmetic number, because the mean of its divisors is an integer number (68869640).

Almost surely, 2^1115687412 is an apocalyptic number.

1115687412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1115687412 is an abundant number, since it is smaller than the sum of its proper divisors (2190055308).

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

1115687412 is a wasteful number, since it uses less digits than its factorization.

1115687412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475797 (or 1475789 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 1115687412 is about 33401.9073108109. The cubic root of 1115687412 is about 1037.1641839946.

The spelling of 1115687412 in words is "one billion, one hundred fifteen million, six hundred eighty-seven thousand, four hundred twelve".