133490669 has 8 divisors (see below), whose sum is σ = 146818560. Its totient is φ = 120599856.

The previous prime is 133490657. The next prime is 133490677. The reversal of 133490669 is 966094331.

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

It is a de Polignac number, because none of the positive numbers 2^k-133490669 is a prime.

It is a super-2 number, since 2×133490669² = 35639517420135122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133490569) 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, 108629 + ... + 109850.

It is an arithmetic number, because the mean of its divisors is an integer number (18352320).

Almost surely, 2^133490669 is an apocalyptic number.

It is an amenable number.

133490669 is a deficient number, since it is larger than the sum of its proper divisors (13327891).

133490669 is a wasteful number, since it uses less digits than its factorization.

133490669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218539.

The product of its (nonzero) digits is 104976, while the sum is 41.

The square root of 133490669 is about 11553.8162093743. The cubic root of 133490669 is about 511.0738222831.

The spelling of 133490669 in words is "one hundred thirty-three million, four hundred ninety thousand, six hundred sixty-nine".