133405754 has 8 divisors (see below), whose sum is σ = 201944820. Its totient is φ = 66090816.

The previous prime is 133405751. The next prime is 133405793. The reversal of 133405754 is 457504331.

It can be written as a sum of positive squares in 2 ways, for example, as 127080529 + 6325225 = 11273^2 + 2515^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 133405754.

It is not an unprimeable number, because it can be changed into a prime (133405751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 305759 + ... + 306194.

Almost surely, 2^133405754 is an apocalyptic number.

133405754 is a deficient number, since it is larger than the sum of its proper divisors (68539066).

133405754 is a wasteful number, since it uses less digits than its factorization.

133405754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612064.

The product of its (nonzero) digits is 25200, while the sum is 32.

The square root of 133405754 is about 11550.1408649419. The cubic root of 133405754 is about 510.9654325878.

The spelling of 133405754 in words is "one hundred thirty-three million, four hundred five thousand, seven hundred fifty-four".