120551143 has 8 divisors (see below), whose sum is σ = 130326320. Its totient is φ = 111119040.

The previous prime is 120551141. The next prime is 120551149. The reversal of 120551143 is 341155021.

120551143 = 1787² + 1788² + ... + 1823².

It is a happy number.

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 120551143 - 2¹ = 120551141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120551141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 85038 + ... + 86443.

It is an arithmetic number, because the mean of its divisors is an integer number (16290790).

Almost surely, 2^120551143 is an apocalyptic number.

120551143 is a deficient number, since it is larger than the sum of its proper divisors (9775177).

120551143 is a wasteful number, since it uses less digits than its factorization.

120551143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171537.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 120551143 is about 10979.5784527458. The cubic root of 120551143 is about 493.9963925824.

The spelling of 120551143 in words is "one hundred twenty million, five hundred fifty-one thousand, one hundred forty-three".