154421202 has 32 divisors (see below), whose sum is σ = 341595072. Its totient is φ = 46229184.

The previous prime is 154421177. The next prime is 154421209. The reversal of 154421202 is 202124451.

It is not an unprimeable number, because it can be changed into a prime (154421209) 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, 23868 + ... + 29639.

It is an arithmetic number, because the mean of its divisors is an integer number (10674846).

Almost surely, 2^154421202 is an apocalyptic number.

154421202 is an abundant number, since it is smaller than the sum of its proper divisors (187173870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154421202 is a wasteful number, since it uses less digits than its factorization.

154421202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53562.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 154421202 is about 12426.6327699824. The cubic root of 154421202 is about 536.4990733881.

Adding to 154421202 its reverse (202124451), we get a palindrome (356545653).

The spelling of 154421202 in words is "one hundred fifty-four million, four hundred twenty-one thousand, two hundred two".