133673057 has 8 divisors (see below), whose sum is σ = 161755776. Its totient is φ = 107836992.

The previous prime is 133673053. The next prime is 133673063. The reversal of 133673057 is 750376331.

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

It is a cyclic number.

It is not a de Polignac number, because 133673057 - 2² = 133673053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133673053) 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, 561533 + ... + 561770.

It is an arithmetic number, because the mean of its divisors is an integer number (20219472).

Almost surely, 2^133673057 is an apocalyptic number.

133673057 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

133673057 is a deficient number, since it is larger than the sum of its proper divisors (28082719).

133673057 is a wasteful number, since it uses less digits than its factorization.

133673057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123327.

The product of its (nonzero) digits is 39690, while the sum is 35.

The square root of 133673057 is about 11561.7064916906. The cubic root of 133673057 is about 511.3064760274.

The spelling of 133673057 in words is "one hundred thirty-three million, six hundred seventy-three thousand, fifty-seven".