4002606131 has 2 divisors, whose sum is σ = 4002606132. Its totient is φ = 4002606130.

The previous prime is 4002606121. The next prime is 4002606149. The reversal of 4002606131 is 1316062004.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4002606131 - 2²² = 3998411827 is a prime.

It is a super-2 number, since 2×4002606131² = 32041711679837578322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4002606097 and 4002606106.

It is not a weakly prime, because it can be changed into another prime (4002606121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2001303065 + 2001303066.

It is an arithmetic number, because the mean of its divisors is an integer number (2001303066).

Almost surely, 2^4002606131 is an apocalyptic number.

4002606131 is a deficient number, since it is larger than the sum of its proper divisors (1).

4002606131 is an equidigital number, since it uses as much as digits as its factorization.

4002606131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 4002606131 is about 63266.1531231353. The cubic root of 4002606131 is about 1587.7457250480.

Adding to 4002606131 its reverse (1316062004), we get a palindrome (5318668135).

The spelling of 4002606131 in words is "four billion, two million, six hundred six thousand, one hundred thirty-one".