120551599 has 8 divisors (see below), whose sum is σ = 145024640. Its totient is φ = 97891416.

The previous prime is 120551597. The next prime is 120551621. The reversal of 120551599 is 995155021.

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

It is not a de Polignac number, because 120551599 - 2¹ = 120551597 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 (120551593) 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, 453069 + ... + 453334.

It is an arithmetic number, because the mean of its divisors is an integer number (18128080).

Almost surely, 2^120551599 is an apocalyptic number.

120551599 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

120551599 is a deficient number, since it is larger than the sum of its proper divisors (24473041).

120551599 is an equidigital number, since it uses as much as digits as its factorization.

120551599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906429.

The product of its (nonzero) digits is 20250, while the sum is 37.

The square root of 120551599 is about 10979.5992185507. The cubic root of 120551599 is about 493.9970154496.

The spelling of 120551599 in words is "one hundred twenty million, five hundred fifty-one thousand, five hundred ninety-nine".