120018541 has 2 divisors, whose sum is σ = 120018542. Its totient is φ = 120018540.

The previous prime is 120018527. The next prime is 120018557. The reversal of 120018541 is 145810021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107557641 + 12460900 = 10371^2 + 3530^2 .

It is a cyclic number.

It is not a de Polignac number, because 120018541 - 2⁷ = 120018413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120018511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60009270 + 60009271.

It is an arithmetic number, because the mean of its divisors is an integer number (60009271).

Almost surely, 2^120018541 is an apocalyptic number.

It is an amenable number.

120018541 is a deficient number, since it is larger than the sum of its proper divisors (1).

120018541 is an equidigital number, since it uses as much as digits as its factorization.

120018541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 120018541 is about 10955.2973944115. The cubic root of 120018541 is about 493.2678169123.

Adding to 120018541 its reverse (145810021), we get a palindrome (265828562).

The spelling of 120018541 in words is "one hundred twenty million, eighteen thousand, five hundred forty-one".