133951105 has 4 divisors (see below), whose sum is σ = 160741332. Its totient is φ = 107160880.

The previous prime is 133951099. The next prime is 133951117. The reversal of 133951105 is 501159331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501159331 = 79 ⋅6343789.

It can be written as a sum of positive squares in 2 ways, for example, as 29257281 + 104693824 = 5409^2 + 10232^2 .

It is not a de Polignac number, because 133951105 - 2⁵ = 133951073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13395106 + ... + 13395115.

It is an arithmetic number, because the mean of its divisors is an integer number (40185333).

Almost surely, 2^133951105 is an apocalyptic number.

It is an amenable number.

133951105 is a deficient number, since it is larger than the sum of its proper divisors (26790227).

133951105 is an equidigital number, since it uses as much as digits as its factorization.

133951105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26790226.

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 133951105 is about 11573.7247677660. The cubic root of 133951105 is about 511.6607465825.

The spelling of 133951105 in words is "one hundred thirty-three million, nine hundred fifty-one thousand, one hundred five".