133057347 has 8 divisors (see below), whose sum is σ = 177481920. Its totient is φ = 88668840.

The previous prime is 133057339. The next prime is 133057367. The reversal of 133057347 is 743750331.

It is a happy number.

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

It is not a de Polignac number, because 133057347 - 2³ = 133057339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133057367) 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, 1272 + ... + 16362.

It is an arithmetic number, because the mean of its divisors is an integer number (22185240).

Almost surely, 2^133057347 is an apocalyptic number.

133057347 is a deficient number, since it is larger than the sum of its proper divisors (44424573).

133057347 is a wasteful number, since it uses less digits than its factorization.

133057347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18033.

The product of its (nonzero) digits is 26460, while the sum is 33.

The square root of 133057347 is about 11535.0486344878. The cubic root of 133057347 is about 510.5202265624.

The spelling of 133057347 in words is "one hundred thirty-three million, fifty-seven thousand, three hundred forty-seven".