120627991 has 8 divisors (see below), whose sum is σ = 134394624. Its totient is φ = 107328120.

The previous prime is 120627989. The next prime is 120628033. The reversal of 120627991 is 199726021.

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 120627991 - 2¹ = 120627989 is a prime.

It is a super-2 number, since 2×120627991² = 29102224425392162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120627991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120627911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116145 + ... + 117178.

It is an arithmetic number, because the mean of its divisors is an integer number (16799328).

Almost surely, 2^120627991 is an apocalyptic number.

120627991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120627991 is a deficient number, since it is larger than the sum of its proper divisors (13766633).

120627991 is a wasteful number, since it uses less digits than its factorization.

120627991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233381.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 120627991 is about 10983.0774831101. The cubic root of 120627991 is about 494.1013399377.

The spelling of 120627991 in words is "one hundred twenty million, six hundred twenty-seven thousand, nine hundred ninety-one".