1161970239 has 8 divisors (see below), whose sum is σ = 1549613952. Its totient is φ = 774486680.

The previous prime is 1161970219. The next prime is 1161970259. The reversal of 1161970239 is 9320791611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1161970219) and next prime (1161970259).

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 1161970239 - 2¹¹ = 1161968191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1161970197 and 1161970206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161970219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21939 + ... + 52964.

It is an arithmetic number, because the mean of its divisors is an integer number (193701744).

Almost surely, 2^1161970239 is an apocalyptic number.

1161970239 is a deficient number, since it is larger than the sum of its proper divisors (387643713).

1161970239 is an equidigital number, since it uses as much as digits as its factorization.

1161970239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80077.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 1161970239 is about 34087.6845649569. The cubic root of 1161970239 is about 1051.3121129475.

The spelling of 1161970239 in words is "one billion, one hundred sixty-one million, nine hundred seventy thousand, two hundred thirty-nine".