120649387 has 2 divisors, whose sum is σ = 120649388. Its totient is φ = 120649386.

The previous prime is 120649369. The next prime is 120649433. The reversal of 120649387 is 783946021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120649387 - 2¹⁹ = 120125099 is a prime.

It is not a weakly prime, because it can be changed into another prime (120649327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60324693 + 60324694.

It is an arithmetic number, because the mean of its divisors is an integer number (60324694).

Almost surely, 2^120649387 is an apocalyptic number.

120649387 is a deficient number, since it is larger than the sum of its proper divisors (1).

120649387 is an equidigital number, since it uses as much as digits as its factorization.

120649387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 120649387 is about 10984.0514838560. The cubic root of 120649387 is about 494.1305514201.

The spelling of 120649387 in words is "one hundred twenty million, six hundred forty-nine thousand, three hundred eighty-seven".