131900543 has 2 divisors, whose sum is σ = 131900544. Its totient is φ = 131900542.

The previous prime is 131900539. The next prime is 131900579. The reversal of 131900543 is 345009131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131900543 - 2² = 131900539 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131900513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65950271 + 65950272.

It is an arithmetic number, because the mean of its divisors is an integer number (65950272).

Almost surely, 2^131900543 is an apocalyptic number.

131900543 is a deficient number, since it is larger than the sum of its proper divisors (1).

131900543 is an equidigital number, since it uses as much as digits as its factorization.

131900543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 131900543 is about 11484.7961671072. The cubic root of 131900543 is about 509.0364261548.

Adding to 131900543 its reverse (345009131), we get a palindrome (476909674).

The spelling of 131900543 in words is "one hundred thirty-one million, nine hundred thousand, five hundred forty-three".