133605069 has 16 divisors (see below), whose sum is σ = 193029312. Its totient is φ = 81710208.

The previous prime is 133605061. The next prime is 133605077. The reversal of 133605069 is 960506331.

It is an interprime number because it is at equal distance from previous prime (133605061) and next prime (133605077).

It is not a de Polignac number, because 133605069 - 2³ = 133605061 is a prime.

It is a super-2 number, since 2×133605069² = 35700628924989522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133605061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4152 + ... + 16865.

It is an arithmetic number, because the mean of its divisors is an integer number (12064332).

Almost surely, 2^133605069 is an apocalyptic number.

It is an amenable number.

133605069 is a deficient number, since it is larger than the sum of its proper divisors (59424243).

133605069 is a wasteful number, since it uses less digits than its factorization.

133605069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21196.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 133605069 is about 11558.7658943332. The cubic root of 133605069 is about 511.2197754344.

The spelling of 133605069 in words is "one hundred thirty-three million, six hundred five thousand, sixty-nine".