131106761 has 4 divisors (see below), whose sum is σ = 131370000. Its totient is φ = 130843524.

The previous prime is 131106757. The next prime is 131106763. The reversal of 131106761 is 167601131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131106761 - 2² = 131106757 is a prime.

It is a super-2 number, since 2×131106761² = 34377965559822242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131106761.

It is not an unprimeable number, because it can be changed into a prime (131106763) 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, 130871 + ... + 131868.

It is an arithmetic number, because the mean of its divisors is an integer number (32842500).

Almost surely, 2^131106761 is an apocalyptic number.

It is an amenable number.

131106761 is a deficient number, since it is larger than the sum of its proper divisors (263239).

131106761 is an equidigital number, since it uses as much as digits as its factorization.

131106761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263238.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 131106761 is about 11450.1860683571. The cubic root of 131106761 is about 508.0132379732.

Adding to 131106761 its reverse (167601131), we get a palindrome (298707892).

The spelling of 131106761 in words is "one hundred thirty-one million, one hundred six thousand, seven hundred sixty-one".