154950978 has 32 divisors (see below), whose sum is σ = 381419136. Its totient is φ = 40866048.

The previous prime is 154950949. The next prime is 154950997. The reversal of 154950978 is 879059451.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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, 141351 + ... + 142442.

It is an arithmetic number, because the mean of its divisors is an integer number (11919348).

Almost surely, 2^154950978 is an apocalyptic number.

154950978 is an abundant number, since it is smaller than the sum of its proper divisors (226468158).

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

154950978 is a wasteful number, since it uses less digits than its factorization.

154950978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283818.

The product of its (nonzero) digits is 453600, while the sum is 48.

The square root of 154950978 is about 12447.9306714008. The cubic root of 154950978 is about 537.1118992524. Note that the first 3 decimals are identical.

The spelling of 154950978 in words is "one hundred fifty-four million, nine hundred fifty thousand, nine hundred seventy-eight".