7665131 has 2 divisors, whose sum is σ = 7665132. Its totient is φ = 7665130.

The previous prime is 7665127. The next prime is 7665143. The reversal of 7665131 is 1315667.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7665131 - 2² = 7665127 is a prime.

It is a super-3 number, since 3×7665131³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 7665094 and 7665103.

It is not a weakly prime, because it can be changed into another prime (7665101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3832565 + 3832566.

It is an arithmetic number, because the mean of its divisors is an integer number (3832566).

Almost surely, 2^7665131 is an apocalyptic number.

7665131 is a deficient number, since it is larger than the sum of its proper divisors (1).

7665131 is an equidigital number, since it uses as much as digits as its factorization.

7665131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 29.

The square root of 7665131 is about 2768.5972982722. The cubic root of 7665131 is about 197.1695569253.

The spelling of 7665131 in words is "seven million, six hundred sixty-five thousand, one hundred thirty-one".