120641613 has 4 divisors (see below), whose sum is σ = 160855488. Its totient is φ = 80427740.

The previous prime is 120641603. The next prime is 120641627. The reversal of 120641613 is 316146021.

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.

It is a cyclic number.

It is not a de Polignac number, because 120641613 - 2⁵ = 120641581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120641603) 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 3 ways as a sum of consecutive naturals, for example, 20106933 + ... + 20106938.

It is an arithmetic number, because the mean of its divisors is an integer number (40213872).

Almost surely, 2^120641613 is an apocalyptic number.

It is an amenable number.

120641613 is a deficient number, since it is larger than the sum of its proper divisors (40213875).

120641613 is an equidigital number, since it uses as much as digits as its factorization.

120641613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40213874.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 120641613 is about 10983.6976014455. The cubic root of 120641613 is about 494.1199381505.

Adding to 120641613 its reverse (316146021), we get a palindrome (436787634).

The spelling of 120641613 in words is "one hundred twenty million, six hundred forty-one thousand, six hundred thirteen".