1155036215 has 64 divisors (see below), whose sum is σ = 1551312000. Its totient is φ = 823173120.

The previous prime is 1155036209. The next prime is 1155036227. The reversal of 1155036215 is 5126305511.

It is not a de Polignac number, because 1155036215 - 2¹² = 1155032119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 12977891 + ... + 12977979.

It is an arithmetic number, because the mean of its divisors is an integer number (24239250).

Almost surely, 2^1155036215 is an apocalyptic number.

1155036215 is a deficient number, since it is larger than the sum of its proper divisors (396275785).

1155036215 is a wasteful number, since it uses less digits than its factorization.

1155036215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 1155036215 is about 33985.8237357872. The cubic root of 1155036215 is about 1049.2167143888.

The spelling of 1155036215 in words is "one billion, one hundred fifty-five million, thirty-six thousand, two hundred fifteen".