1161417399 has 8 divisors (see below), whose sum is σ = 1550305920. Its totient is φ = 773403576.

The previous prime is 1161417379. The next prime is 1161417403. The reversal of 1161417399 is 9937141611.

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

It is not a de Polignac number, because 1161417399 - 2¹¹ = 1161415351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1161417399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161417349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215569 + ... + 220890.

It is an arithmetic number, because the mean of its divisors is an integer number (193788240).

Almost surely, 2^1161417399 is an apocalyptic number.

1161417399 is a deficient number, since it is larger than the sum of its proper divisors (388888521).

1161417399 is an equidigital number, since it uses as much as digits as its factorization.

1161417399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437349.

The product of its digits is 40824, while the sum is 42.

The square root of 1161417399 is about 34079.5745131890. The cubic root of 1161417399 is about 1051.1453560695.

The spelling of 1161417399 in words is "one billion, one hundred sixty-one million, four hundred seventeen thousand, three hundred ninety-nine".