120394587 has 4 divisors (see below), whose sum is σ = 160526120. Its totient is φ = 80263056.

The previous prime is 120394531. The next prime is 120394591. The reversal of 120394587 is 785493021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 785493021 = 3 ⋅261831007.

It is not a de Polignac number, because 120394587 - 2⁶ = 120394523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120354587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20065762 + ... + 20065767.

It is an arithmetic number, because the mean of its divisors is an integer number (40131530).

Almost surely, 2^120394587 is an apocalyptic number.

120394587 is a deficient number, since it is larger than the sum of its proper divisors (40131533).

120394587 is an equidigital number, since it uses as much as digits as its factorization.

120394587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40131532.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 120394587 is about 10972.4467189410. The cubic root of 120394587 is about 493.7824540543.

The spelling of 120394587 in words is "one hundred twenty million, three hundred ninety-four thousand, five hundred eighty-seven".