133914109 has 24 divisors (see below), whose sum is σ = 166047840. Its totient is φ = 107370144.

The previous prime is 133914107. The next prime is 133914149. The reversal of 133914109 is 901419331.

It is not a de Polignac number, because 133914109 - 2¹ = 133914107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133914103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76407 + ... + 78139.

It is an arithmetic number, because the mean of its divisors is an integer number (6918660).

Almost surely, 2^133914109 is an apocalyptic number.

133914109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

133914109 is a deficient number, since it is larger than the sum of its proper divisors (32133731).

133914109 is a wasteful number, since it uses less digits than its factorization.

133914109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849 (or 1842 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 133914109 is about 11572.1263819576. The cubic root of 133914109 is about 511.6136369949.

The spelling of 133914109 in words is "one hundred thirty-three million, nine hundred fourteen thousand, one hundred nine".