4001613131 has 2 divisors, whose sum is σ = 4001613132. Its totient is φ = 4001613130.

The previous prime is 4001613107. The next prime is 4001613167. The reversal of 4001613131 is 1313161004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4001613131 - 2¹⁰ = 4001612107 is a prime.

It is a super-2 number, since 2×4001613131² = 32025815300383246322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4001619131) 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 as a sum of consecutive naturals, namely, 2000806565 + 2000806566.

It is an arithmetic number, because the mean of its divisors is an integer number (2000806566).

Almost surely, 2^4001613131 is an apocalyptic number.

4001613131 is a deficient number, since it is larger than the sum of its proper divisors (1).

4001613131 is an equidigital number, since it uses as much as digits as its factorization.

4001613131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 4001613131 is about 63258.3048381792. The cubic root of 4001613131 is about 1587.6144137763.

Adding to 4001613131 its reverse (1313161004), we get a palindrome (5314774135).

The spelling of 4001613131 in words is "four billion, one million, six hundred thirteen thousand, one hundred thirty-one".