7131663 has 48 divisors (see below), whose sum is σ = 13208832. Its totient is φ = 3600000.

The previous prime is 7131661. The next prime is 7131689. The reversal of 7131663 is 3661317.

7131663 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7131663 - 2¹ = 7131661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7131661) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28288 + ... + 28538.

It is an arithmetic number, because the mean of its divisors is an integer number (275184).

Almost surely, 2^7131663 is an apocalyptic number.

7131663 is a deficient number, since it is larger than the sum of its proper divisors (6077169).

7131663 is a wasteful number, since it uses less digits than its factorization.

7131663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316 (or 313 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 7131663 is about 2670.5173656054. The cubic root of 7131663 is about 192.4850204794.

The spelling of 7131663 in words is "seven million, one hundred thirty-one thousand, six hundred sixty-three".