1161842685 has 16 divisors (see below), whose sum is σ = 1956788160. Its totient is φ = 587036160.

The previous prime is 1161842683. The next prime is 1161842687. The reversal of 1161842685 is 5862481611.

It is an interprime number because it is at equal distance from previous prime (1161842683) and next prime (1161842687).

It is not a de Polignac number, because 1161842685 - 2¹ = 1161842683 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161842681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2038036 + ... + 2038605.

It is an arithmetic number, because the mean of its divisors is an integer number (122299260).

Almost surely, 2^1161842685 is an apocalyptic number.

1161842685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1161842685 is a deficient number, since it is larger than the sum of its proper divisors (794945475).

1161842685 is a wasteful number, since it uses less digits than its factorization.

1161842685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4076668.

The product of its digits is 92160, while the sum is 42.

The square root of 1161842685 is about 34085.8135446405. The cubic root of 1161842685 is about 1051.2736426643.

The spelling of 1161842685 in words is "one billion, one hundred sixty-one million, eight hundred forty-two thousand, six hundred eighty-five".