120087636 has 12 divisors (see below), whose sum is σ = 280204512. Its totient is φ = 40029208.

The previous prime is 120087631. The next prime is 120087659. The reversal of 120087636 is 636780021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 120087597 and 120087606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120087631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5003640 + ... + 5003663.

It is an arithmetic number, because the mean of its divisors is an integer number (23350376).

Almost surely, 2^120087636 is an apocalyptic number.

It is an amenable number.

120087636 is an abundant number, since it is smaller than the sum of its proper divisors (160116876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120087636 is a wasteful number, since it uses less digits than its factorization.

120087636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10007310 (or 10007308 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 120087636 is about 10958.4504379041. The cubic root of 120087636 is about 493.3624572937.

The spelling of 120087636 in words is "one hundred twenty million, eighty-seven thousand, six hundred thirty-six".