1115402655 has 16 divisors (see below), whose sum is σ = 1790742240. Its totient is φ = 592848768.

The previous prime is 1115402653. The next prime is 1115402683. The reversal of 1115402655 is 5562045111.

It is not a de Polignac number, because 1115402655 - 2¹ = 1115402653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115402653) 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, 122500 + ... + 131289.

It is an arithmetic number, because the mean of its divisors is an integer number (111921390).

Almost surely, 2^1115402655 is an apocalyptic number.

1115402655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1115402655 is a deficient number, since it is larger than the sum of its proper divisors (675339585).

1115402655 is a wasteful number, since it uses less digits than its factorization.

1115402655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254090.

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 1115402655 is about 33397.6444528652. The cubic root of 1115402655 is about 1037.0759379834.

Adding to 1115402655 its reverse (5562045111), we get a palindrome (6677447766).

The spelling of 1115402655 in words is "one billion, one hundred fifteen million, four hundred two thousand, six hundred fifty-five".