1155067211 has 6 divisors (see below), whose sum is σ = 1183928436. Its totient is φ = 1126893200.

The previous prime is 1155067183. The next prime is 1155067219. The reversal of 1155067211 is 1127605511.

It is a de Polignac number, because none of the positive numbers 2^k-1155067211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1155067219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341885 + ... + 345246.

It is an arithmetic number, because the mean of its divisors is an integer number (197321406).

Almost surely, 2^1155067211 is an apocalyptic number.

1155067211 is a deficient number, since it is larger than the sum of its proper divisors (28861225).

1155067211 is an frugal number, since it uses more digits than its factorization.

1155067211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687213 (or 687172 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 29.

The square root of 1155067211 is about 33986.2797463918. The cubic root of 1155067211 is about 1049.2260997310.

The spelling of 1155067211 in words is "one billion, one hundred fifty-five million, sixty-seven thousand, two hundred eleven".