3661162131 has 8 divisors (see below), whose sum is σ = 5325326784. Its totient is φ = 2218886120.

The previous prime is 3661162123. The next prime is 3661162139. The reversal of 3661162131 is 1312611663.

It is an interprime number because it is at equal distance from previous prime (3661162123) and next prime (3661162139).

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

It is not a de Polignac number, because 3661162131 - 2³ = 3661162123 is a prime.

It is a super-2 number, since 2×3661162131² = 26808216298936922322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3661162139) 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, 55472121 + ... + 55472186.

It is an arithmetic number, because the mean of its divisors is an integer number (665665848).

Almost surely, 2^3661162131 is an apocalyptic number.

3661162131 is a deficient number, since it is larger than the sum of its proper divisors (1664164653).

3661162131 is a wasteful number, since it uses less digits than its factorization.

3661162131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110944321.

The product of its digits is 3888, while the sum is 30.

The square root of 3661162131 is about 60507.5378031531. The cubic root of 3661162131 is about 1541.2496366019.

Adding to 3661162131 its reverse (1312611663), we get a palindrome (4973773794).

The spelling of 3661162131 in words is "three billion, six hundred sixty-one million, one hundred sixty-two thousand, one hundred thirty-one".