133400069 has 8 divisors (see below), whose sum is σ = 151854912. Its totient is φ = 115999840.

The previous prime is 133400039. The next prime is 133400081. The reversal of 133400069 is 960004331.

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

It is not a de Polignac number, because 133400069 - 2⁸ = 133399813 is a prime.

It is a super-2 number, since 2×133400069² = 35591156818409522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133400009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263384 + ... + 263889.

It is an arithmetic number, because the mean of its divisors is an integer number (18981864).

Almost surely, 2^133400069 is an apocalyptic number.

It is an amenable number.

133400069 is a deficient number, since it is larger than the sum of its proper divisors (18454843).

133400069 is a wasteful number, since it uses less digits than its factorization.

133400069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527307.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 133400069 is about 11549.8947614253. The cubic root of 133400069 is about 510.9581743308.

The spelling of 133400069 in words is "one hundred thirty-three million, four hundred thousand, sixty-nine".