131768773 has 4 divisors (see below), whose sum is σ = 131894028. Its totient is φ = 131643520.

The previous prime is 131768753. The next prime is 131768797. The reversal of 131768773 is 377867131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 377867131 = 691 ⋅546841.

It can be written as a sum of positive squares in 2 ways, for example, as 115390564 + 16378209 = 10742^2 + 4047^2 .

It is a cyclic number.

It is not a de Polignac number, because 131768773 - 2¹³ = 131760581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131768753) 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, 61036 + ... + 63157.

It is an arithmetic number, because the mean of its divisors is an integer number (32973507).

Almost surely, 2^131768773 is an apocalyptic number.

It is an amenable number.

131768773 is a deficient number, since it is larger than the sum of its proper divisors (125255).

131768773 is a wasteful number, since it uses less digits than its factorization.

131768773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125254.

The product of its digits is 148176, while the sum is 43.

The square root of 131768773 is about 11479.0580188446. The cubic root of 131768773 is about 508.8668587995.

The spelling of 131768773 in words is "one hundred thirty-one million, seven hundred sixty-eight thousand, seven hundred seventy-three".