154021133 has 16 divisors (see below), whose sum is σ = 188165376. Its totient is φ = 123192960.

The previous prime is 154021111. The next prime is 154021171. The reversal of 154021133 is 331120451.

It is a cyclic number.

It is not a de Polignac number, because 154021133 - 2⁶ = 154021069 is a prime.

It is a super-3 number, since 3×154021133³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154021183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5066 + ... + 18267.

It is an arithmetic number, because the mean of its divisors is an integer number (11760336).

Almost surely, 2^154021133 is an apocalyptic number.

It is an amenable number.

154021133 is a deficient number, since it is larger than the sum of its proper divisors (34144243).

154021133 is a wasteful number, since it uses less digits than its factorization.

154021133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23404.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 154021133 is about 12410.5250896165. The cubic root of 154021133 is about 536.0353584104.

Adding to 154021133 its reverse (331120451), we get a palindrome (485141584).

The spelling of 154021133 in words is "one hundred fifty-four million, twenty-one thousand, one hundred thirty-three".