131450730409 has 2 divisors, whose sum is σ = 131450730410. Its totient is φ = 131450730408.

The previous prime is 131450730311. The next prime is 131450730431. The reversal of 131450730409 is 904037054131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 128126054809 + 3324675600 = 357947^2 + 57660^2 .

It is a cyclic number.

It is not a de Polignac number, because 131450730409 - 2⁹ = 131450729897 is a prime.

It is not a weakly prime, because it can be changed into another prime (131450710409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65725365204 + 65725365205.

It is an arithmetic number, because the mean of its divisors is an integer number (65725365205).

Almost surely, 2^131450730409 is an apocalyptic number.

It is an amenable number.

131450730409 is a deficient number, since it is larger than the sum of its proper divisors (1).

131450730409 is an equidigital number, since it uses as much as digits as its factorization.

131450730409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 37.

The spelling of 131450730409 in words is "one hundred thirty-one billion, four hundred fifty million, seven hundred thirty thousand, four hundred nine".