131149219 has 2 divisors, whose sum is σ = 131149220. Its totient is φ = 131149218.

The previous prime is 131149171. The next prime is 131149259. The reversal of 131149219 is 912941131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131149219 - 2⁷ = 131149091 is a prime.

It is a super-2 number, since 2×131149219² = 34400235288619922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131149259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65574609 + 65574610.

It is an arithmetic number, because the mean of its divisors is an integer number (65574610).

Almost surely, 2^131149219 is an apocalyptic number.

131149219 is a deficient number, since it is larger than the sum of its proper divisors (1).

131149219 is an equidigital number, since it uses as much as digits as its factorization.

131149219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 31.

The square root of 131149219 is about 11452.0399492841. The cubic root of 131149219 is about 508.0680708894.

The spelling of 131149219 in words is "one hundred thirty-one million, one hundred forty-nine thousand, two hundred nineteen".