131303747 has 4 divisors (see below), whose sum is σ = 132779160. Its totient is φ = 129828336.

The previous prime is 131303741. The next prime is 131303797. The reversal of 131303747 is 747303131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131303747 - 2²⁰ = 130255171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131303741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 737573 + ... + 737750.

It is an arithmetic number, because the mean of its divisors is an integer number (33194790).

Almost surely, 2^131303747 is an apocalyptic number.

131303747 is a deficient number, since it is larger than the sum of its proper divisors (1475413).

131303747 is an equidigital number, since it uses as much as digits as its factorization.

131303747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475412.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 131303747 is about 11458.7847086853. The cubic root of 131303747 is about 508.2675381533.

Adding to 131303747 its reverse (747303131), we get a palindrome (878606878).

The spelling of 131303747 in words is "one hundred thirty-one million, three hundred three thousand, seven hundred forty-seven".