131790133 has 2 divisors, whose sum is σ = 131790134. Its totient is φ = 131790132.

The previous prime is 131790121. The next prime is 131790143. The reversal of 131790133 is 331097131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66471409 + 65318724 = 8153^2 + 8082^2 .

It is a cyclic number.

It is not a de Polignac number, because 131790133 - 2¹³ = 131781941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131790143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65895066 + 65895067.

It is an arithmetic number, because the mean of its divisors is an integer number (65895067).

Almost surely, 2^131790133 is an apocalyptic number.

It is an amenable number.

131790133 is a deficient number, since it is larger than the sum of its proper divisors (1).

131790133 is an equidigital number, since it uses as much as digits as its factorization.

131790133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 28.

The square root of 131790133 is about 11479.9883710742. The cubic root of 131790133 is about 508.8943534494.

The spelling of 131790133 in words is "one hundred thirty-one million, seven hundred ninety thousand, one hundred thirty-three".