120284551 has 2 divisors, whose sum is σ = 120284552. Its totient is φ = 120284550.

The previous prime is 120284543. The next prime is 120284561. The reversal of 120284551 is 155482021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120284551 - 2³ = 120284543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120284561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60142275 + 60142276.

It is an arithmetic number, because the mean of its divisors is an integer number (60142276).

Almost surely, 2^120284551 is an apocalyptic number.

120284551 is a deficient number, since it is larger than the sum of its proper divisors (1).

120284551 is an equidigital number, since it uses as much as digits as its factorization.

120284551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 120284551 is about 10967.4313765804. The cubic root of 120284551 is about 493.6319755074.

The spelling of 120284551 in words is "one hundred twenty million, two hundred eighty-four thousand, five hundred fifty-one".