131729219 has 2 divisors, whose sum is σ = 131729220. Its totient is φ = 131729218.

The previous prime is 131729207. The next prime is 131729231. The reversal of 131729219 is 912927131.

It is a balanced prime because it is at equal distance from previous prime (131729207) and next prime (131729231).

It is a cyclic number.

It is not a de Polignac number, because 131729219 - 2¹² = 131725123 is a prime.

It is a super-2 number, since 2×131729219² = 34705174276699922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131729239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65864609 + 65864610.

It is an arithmetic number, because the mean of its divisors is an integer number (65864610).

Almost surely, 2^131729219 is an apocalyptic number.

131729219 is a deficient number, since it is larger than the sum of its proper divisors (1).

131729219 is an equidigital number, since it uses as much as digits as its factorization.

131729219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6804, while the sum is 35.

The square root of 131729219 is about 11477.3350129723. The cubic root of 131729219 is about 508.8159369369.

The spelling of 131729219 in words is "one hundred thirty-one million, seven hundred twenty-nine thousand, two hundred nineteen".