133404542 has 16 divisors (see below), whose sum is σ = 212777280. Its totient is φ = 62512128.

The previous prime is 133404521. The next prime is 133404547. The reversal of 133404542 is 245404331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133404547) 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, 83 + ... + 16334.

It is an arithmetic number, because the mean of its divisors is an integer number (13298580).

Almost surely, 2^133404542 is an apocalyptic number.

133404542 is a deficient number, since it is larger than the sum of its proper divisors (79372738).

133404542 is a wasteful number, since it uses less digits than its factorization.

133404542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16675.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 133404542 is about 11550.0883979301. The cubic root of 133404542 is about 510.9638851983.

Adding to 133404542 its reverse (245404331), we get a palindrome (378808873).

The spelling of 133404542 in words is "one hundred thirty-three million, four hundred four thousand, five hundred forty-two".