131100149 has 2 divisors, whose sum is σ = 131100150. Its totient is φ = 131100148.

The previous prime is 131100131. The next prime is 131100169. The reversal of 131100149 is 941001131.

It is an a-pointer prime, because the next prime (131100169) can be obtained adding 131100149 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128482225 + 2617924 = 11335^2 + 1618^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131100149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131100149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131100169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65550074 + 65550075.

It is an arithmetic number, because the mean of its divisors is an integer number (65550075).

Almost surely, 2^131100149 is an apocalyptic number.

It is an amenable number.

131100149 is a deficient number, since it is larger than the sum of its proper divisors (1).

131100149 is an equidigital number, since it uses as much as digits as its factorization.

131100149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 131100149 is about 11449.8973357843. The cubic root of 131100149 is about 508.0046977576.

The spelling of 131100149 in words is "one hundred thirty-one million, one hundred thousand, one hundred forty-nine".