1139870549 has 8 divisors (see below), whose sum is σ = 1181100000. Its totient is φ = 1098769392.

The previous prime is 1139870533. The next prime is 1139870569. The reversal of 1139870549 is 9450789311.

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

It is a cyclic number.

It is not a de Polignac number, because 1139870549 - 2⁴ = 1139870533 is a prime.

It is a super-2 number, since 2×1139870549² = 2598609736955122802, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139870569) 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, 13799 + ... + 49700.

It is an arithmetic number, because the mean of its divisors is an integer number (147637500).

Almost surely, 2^1139870549 is an apocalyptic number.

It is an amenable number.

1139870549 is a deficient number, since it is larger than the sum of its proper divisors (41229451).

1139870549 is an equidigital number, since it uses as much as digits as its factorization.

1139870549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64147.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 1139870549 is about 33761.9689739802. The cubic root of 1139870549 is about 1044.6043843311.

The spelling of 1139870549 in words is "one billion, one hundred thirty-nine million, eight hundred seventy thousand, five hundred forty-nine".