154121122 has 32 divisors (see below), whose sum is σ = 248400000. Its totient is φ = 71508096.

The previous prime is 154121117. The next prime is 154121153. The reversal of 154121122 is 221121451.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 154121122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672904 + ... + 673132.

It is an arithmetic number, because the mean of its divisors is an integer number (7762500).

Almost surely, 2^154121122 is an apocalyptic number.

154121122 is a deficient number, since it is larger than the sum of its proper divisors (94278878).

154121122 is a wasteful number, since it uses less digits than its factorization.

154121122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538.

The product of its digits is 160, while the sum is 19.

The square root of 154121122 is about 12414.5528312541. The cubic root of 154121122 is about 536.1513296070.

Adding to 154121122 its reverse (221121451), we get a palindrome (375242573).

The spelling of 154121122 in words is "one hundred fifty-four million, one hundred twenty-one thousand, one hundred twenty-two".