133255606 has 48 divisors (see below), whose sum is σ = 232696800. Its totient is φ = 57073280.

The previous prime is 133255601. The next prime is 133255643. The reversal of 133255606 is 606552331.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133255601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 495240 + ... + 495508.

It is an arithmetic number, because the mean of its divisors is an integer number (4847850).

Almost surely, 2^133255606 is an apocalyptic number.

133255606 is a deficient number, since it is larger than the sum of its proper divisors (99441194).

133255606 is a wasteful number, since it uses less digits than its factorization.

133255606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 133255606 is about 11543.6392008760. The cubic root of 133255606 is about 510.7736636513.

The spelling of 133255606 in words is "one hundred thirty-three million, two hundred fifty-five thousand, six hundred six".