1149341885 has 4 divisors (see below), whose sum is σ = 1379210268. Its totient is φ = 919473504.

The previous prime is 1149341881. The next prime is 1149341887. The reversal of 1149341885 is 5881439411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5881439411 = 23 ⋅255714757.

It can be written as a sum of positive squares in 2 ways, for example, as 698756356 + 450585529 = 26434^2 + 21227^2 .

It is a cyclic number.

It is not a de Polignac number, because 1149341885 - 2² = 1149341881 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149341881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114934184 + ... + 114934193.

It is an arithmetic number, because the mean of its divisors is an integer number (344802567).

Almost surely, 2^1149341885 is an apocalyptic number.

It is an amenable number.

1149341885 is a deficient number, since it is larger than the sum of its proper divisors (229868383).

1149341885 is an equidigital number, since it uses as much as digits as its factorization.

1149341885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229868382.

The product of its digits is 138240, while the sum is 44.

The square root of 1149341885 is about 33901.9451506842. The cubic root of 1149341885 is about 1047.4896599021.

The spelling of 1149341885 in words is "one billion, one hundred forty-nine million, three hundred forty-one thousand, eight hundred eighty-five".