131003743 has 16 divisors (see below), whose sum is σ = 143410176. Its totient is φ = 118948320.

The previous prime is 131003729. The next prime is 131003749. The reversal of 131003743 is 347300131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131003743 - 2¹⁷ = 130872671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131003749) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303738 + ... + 304168.

It is an arithmetic number, because the mean of its divisors is an integer number (8963136).

Almost surely, 2^131003743 is an apocalyptic number.

131003743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131003743 is a deficient number, since it is larger than the sum of its proper divisors (12406433).

131003743 is a wasteful number, since it uses less digits than its factorization.

131003743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 131003743 is about 11445.6866548058. The cubic root of 131003743 is about 507.8801448595.

Adding to 131003743 its reverse (347300131), we get a palindrome (478303874).

The spelling of 131003743 in words is "one hundred thirty-one million, three thousand, seven hundred forty-three".