131601743 has 32 divisors (see below), whose sum is σ = 173464704. Its totient is φ = 96878592.

The previous prime is 131601737. The next prime is 131601763. The reversal of 131601743 is 347106131.

It is a cyclic number.

It is not a de Polignac number, because 131601743 - 2¹⁸ = 131339599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131601763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 149621 + ... + 150497.

It is an arithmetic number, because the mean of its divisors is an integer number (5420772).

Almost surely, 2^131601743 is an apocalyptic number.

131601743 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131601743 is a deficient number, since it is larger than the sum of its proper divisors (41862961).

131601743 is a wasteful number, since it uses less digits than its factorization.

131601743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 131601743 is about 11471.7802890397. The cubic root of 131601743 is about 508.6517547996.

Adding to 131601743 its reverse (347106131), we get a palindrome (478707874).

The spelling of 131601743 in words is "one hundred thirty-one million, six hundred one thousand, seven hundred forty-three".