133881219 has 12 divisors (see below), whose sum is σ = 199622592. Its totient is φ = 86374800.

The previous prime is 133881217. The next prime is 133881247. The reversal of 133881219 is 912188331.

It is not a de Polignac number, because 133881219 - 2¹ = 133881217 is a prime.

It is a super-2 number, since 2×133881219² = 35848361601851922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133881211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 239652 + ... + 240209.

It is an arithmetic number, because the mean of its divisors is an integer number (16635216).

Almost surely, 2^133881219 is an apocalyptic number.

133881219 is a deficient number, since it is larger than the sum of its proper divisors (65741373).

133881219 is a wasteful number, since it uses less digits than its factorization.

133881219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479898 (or 479895 counting only the distinct ones).

The product of its digits is 10368, while the sum is 36.

The square root of 133881219 is about 11570.7052075489. The cubic root of 133881219 is about 511.5717485774.

The spelling of 133881219 in words is "one hundred thirty-three million, eight hundred eighty-one thousand, two hundred nineteen".