120642481 has 4 divisors (see below), whose sum is σ = 120838000. Its totient is φ = 120446964.

The previous prime is 120642479. The next prime is 120642493. The reversal of 120642481 is 184246021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184246021 = 19 ⋅9697159.

It is a cyclic number.

It is not a de Polignac number, because 120642481 - 2¹ = 120642479 is a prime.

It is a super-2 number, since 2×120642481² = 29109216443670722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120642451) 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, 96831 + ... + 98068.

It is an arithmetic number, because the mean of its divisors is an integer number (30209500).

Almost surely, 2^120642481 is an apocalyptic number.

It is an amenable number.

120642481 is a deficient number, since it is larger than the sum of its proper divisors (195519).

120642481 is an equidigital number, since it uses as much as digits as its factorization.

120642481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195518.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 120642481 is about 10983.7371144798. The cubic root of 120642481 is about 494.1211231896.

The spelling of 120642481 in words is "one hundred twenty million, six hundred forty-two thousand, four hundred eighty-one".