1139661219 has 8 divisors (see below), whose sum is σ = 1520568000. Its totient is φ = 759264296.

The previous prime is 1139661199. The next prime is 1139661221. The reversal of 1139661219 is 9121669311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1139661219 is a prime.

It is a super-2 number, since 2×1139661219² = 2597655388185131922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1139661269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122217 + ... + 131210.

It is an arithmetic number, because the mean of its divisors is an integer number (190071000).

Almost surely, 2^1139661219 is an apocalyptic number.

1139661219 is a deficient number, since it is larger than the sum of its proper divisors (380906781).

1139661219 is a wasteful number, since it uses less digits than its factorization.

1139661219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254929.

The product of its digits is 17496, while the sum is 39.

The square root of 1139661219 is about 33758.8687458570. The cubic root of 1139661219 is about 1044.5404354254.

The spelling of 1139661219 in words is "one billion, one hundred thirty-nine million, six hundred sixty-one thousand, two hundred nineteen".