154479138 has 32 divisors (see below), whose sum is σ = 347922432. Its totient is φ = 45301200.

The previous prime is 154479137. The next prime is 154479151. The reversal of 154479138 is 831974451.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 154479138.

It is not an unprimeable number, because it can be changed into a prime (154479137) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 35706 + ... + 39797.

It is an arithmetic number, because the mean of its divisors is an integer number (10872576).

Almost surely, 2^154479138 is an apocalyptic number.

154479138 is an abundant number, since it is smaller than the sum of its proper divisors (193443294).

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

154479138 is a wasteful number, since it uses less digits than its factorization.

154479138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75550.

The product of its digits is 120960, while the sum is 42.

The square root of 154479138 is about 12428.9636736133. The cubic root of 154479138 is about 536.5661598665.

The spelling of 154479138 in words is "one hundred fifty-four million, four hundred seventy-nine thousand, one hundred thirty-eight".