1147665214 has 4 divisors (see below), whose sum is σ = 1721497824. Its totient is φ = 573832606.

The previous prime is 1147665209. The next prime is 1147665221. The reversal of 1147665214 is 4125667411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4125667411 = 757 ⋅5450023.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286916302 + ... + 286916305.

It is an arithmetic number, because the mean of its divisors is an integer number (430374456).

Almost surely, 2^1147665214 is an apocalyptic number.

1147665214 is a deficient number, since it is larger than the sum of its proper divisors (573832610).

1147665214 is an equidigital number, since it uses as much as digits as its factorization.

1147665214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573832609.

The product of its digits is 40320, while the sum is 37.

The square root of 1147665214 is about 33877.2078837675. The cubic root of 1147665214 is about 1046.9800493488.

The spelling of 1147665214 in words is "one billion, one hundred forty-seven million, six hundred sixty-five thousand, two hundred fourteen".