1155036213 has 16 divisors (see below), whose sum is σ = 1713668800. Its totient is φ = 768897360.

The previous prime is 1155036209. The next prime is 1155036227. The reversal of 1155036213 is 3126305511.

It is not a de Polignac number, because 1155036213 - 2² = 1155036209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155036313) 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, 12298 + ... + 49611.

It is an arithmetic number, because the mean of its divisors is an integer number (107104300).

Almost surely, 2^1155036213 is an apocalyptic number.

It is an amenable number.

1155036213 is a deficient number, since it is larger than the sum of its proper divisors (558632587).

1155036213 is an equidigital number, since it uses as much as digits as its factorization.

1155036213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62609 (or 62603 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1155036213 is about 33985.8237063632. The cubic root of 1155036213 is about 1049.2167137832.

The spelling of 1155036213 in words is "one billion, one hundred fifty-five million, thirty-six thousand, two hundred thirteen".