120520154 has 8 divisors (see below), whose sum is σ = 190295040. Its totient is φ = 57088476.

The previous prime is 120520121. The next prime is 120520189. The reversal of 120520154 is 451025021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1585754 + ... + 1585829.

It is an arithmetic number, because the mean of its divisors is an integer number (23786880).

Almost surely, 2^120520154 is an apocalyptic number.

120520154 is a deficient number, since it is larger than the sum of its proper divisors (69774886).

120520154 is a wasteful number, since it uses less digits than its factorization.

120520154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171604.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 120520154 is about 10978.1671512143. The cubic root of 120520154 is about 493.9540598823.

Adding to 120520154 its reverse (451025021), we get a palindrome (571545175).

The spelling of 120520154 in words is "one hundred twenty million, five hundred twenty thousand, one hundred fifty-four".