120500551 has 8 divisors (see below), whose sum is σ = 121461120. Its totient is φ = 119544312.

The previous prime is 120500543. The next prime is 120500557. The reversal of 120500551 is 155005021.

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

It is a cyclic number.

It is not a de Polignac number, because 120500551 - 2³ = 120500543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120500557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73620 + ... + 75238.

It is an arithmetic number, because the mean of its divisors is an integer number (15182640).

Almost surely, 2^120500551 is an apocalyptic number.

120500551 is a deficient number, since it is larger than the sum of its proper divisors (960569).

120500551 is a wasteful number, since it uses less digits than its factorization.

120500551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 120500551 is about 10977.2742973837. The cubic root of 120500551 is about 493.9272773453.

Adding to 120500551 its reverse (155005021), we get a palindrome (275505572).

The spelling of 120500551 in words is "one hundred twenty million, five hundred thousand, five hundred fifty-one".