154421002 has 16 divisors (see below), whose sum is σ = 234964800. Its totient is φ = 76103872.

The previous prime is 154420967. The next prime is 154421023. The reversal of 154421002 is 200124451.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98658 + ... + 100210.

It is an arithmetic number, because the mean of its divisors is an integer number (14685300).

Almost surely, 2^154421002 is an apocalyptic number.

154421002 is a deficient number, since it is larger than the sum of its proper divisors (80543798).

154421002 is a wasteful number, since it uses less digits than its factorization.

154421002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 154421002 is about 12426.6247227475. The cubic root of 154421002 is about 536.4988417708.

Adding to 154421002 its reverse (200124451), we get a palindrome (354545453).

The spelling of 154421002 in words is "one hundred fifty-four million, four hundred twenty-one thousand, two".