131780219 has 8 divisors (see below), whose sum is σ = 139650000. Its totient is φ = 124003872.

The previous prime is 131780183. The next prime is 131780221. The reversal of 131780219 is 912087131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131780219 - 2¹⁶ = 131714683 is a prime.

It is a super-2 number, since 2×131780219² = 34732052239375922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131780239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20444 + ... + 26105.

It is an arithmetic number, because the mean of its divisors is an integer number (17456250).

Almost surely, 2^131780219 is an apocalyptic number.

131780219 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

131780219 is a deficient number, since it is larger than the sum of its proper divisors (7869781).

131780219 is a wasteful number, since it uses less digits than its factorization.

131780219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46717.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 131780219 is about 11479.5565680909. The cubic root of 131780219 is about 508.8815924912.

The spelling of 131780219 in words is "one hundred thirty-one million, seven hundred eighty thousand, two hundred nineteen".