120185641 has 2 divisors, whose sum is σ = 120185642. Its totient is φ = 120185640.

The previous prime is 120185633. The next prime is 120185669. The reversal of 120185641 is 146581021.

It is an a-pointer prime, because the next prime (120185669) can be obtained adding 120185641 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113955625 + 6230016 = 10675^2 + 2496^2 .

It is a cyclic number.

It is not a de Polignac number, because 120185641 - 2³ = 120185633 is a prime.

It is not a weakly prime, because it can be changed into another prime (120185671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60092820 + 60092821.

It is an arithmetic number, because the mean of its divisors is an integer number (60092821).

Almost surely, 2^120185641 is an apocalyptic number.

It is an amenable number.

120185641 is a deficient number, since it is larger than the sum of its proper divisors (1).

120185641 is an equidigital number, since it uses as much as digits as its factorization.

120185641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 120185641 is about 10962.9211891722. The cubic root of 120185641 is about 493.4966338602.

It can be divided in two parts, 120 and 185641, that added together give a square (185761 = 431²).

The spelling of 120185641 in words is "one hundred twenty million, one hundred eighty-five thousand, six hundred forty-one".