3851161091 has 8 divisors (see below), whose sum is σ = 4059444480. Its totient is φ = 3643436808.

The previous prime is 3851161049. The next prime is 3851161099. The reversal of 3851161091 is 1901611583.

It is a happy number.

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

It is not a de Polignac number, because 3851161091 - 2¹⁴ = 3851144707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3851161099) 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, 125591 + ... + 153216.

It is an arithmetic number, because the mean of its divisors is an integer number (507430560).

Almost surely, 2^3851161091 is an apocalyptic number.

3851161091 is a deficient number, since it is larger than the sum of its proper divisors (208283389).

3851161091 is a wasteful number, since it uses less digits than its factorization.

3851161091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279553.

The product of its (nonzero) digits is 6480, while the sum is 35.

The square root of 3851161091 is about 62057.7238625459. The cubic root of 3851161091 is about 1567.4627484582.

The spelling of 3851161091 in words is "three billion, eight hundred fifty-one million, one hundred sixty-one thousand, ninety-one".