120135541 has 2 divisors, whose sum is σ = 120135542. Its totient is φ = 120135540.

The previous prime is 120135539. The next prime is 120135551. The reversal of 120135541 is 145531021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 92352100 + 27783441 = 9610^2 + 5271^2 .

It is a cyclic number.

It is not a de Polignac number, because 120135541 - 2¹ = 120135539 is a prime.

It is a super-2 number, since 2×120135541² = 28865096422725362, which contains 22 as substring.

Together with 120135539, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120135511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60067770 + 60067771.

It is an arithmetic number, because the mean of its divisors is an integer number (60067771).

Almost surely, 2^120135541 is an apocalyptic number.

It is an amenable number.

120135541 is a deficient number, since it is larger than the sum of its proper divisors (1).

120135541 is an equidigital number, since it uses as much as digits as its factorization.

120135541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 120135541 is about 10960.6359760737. The cubic root of 120135541 is about 493.4280521300.

Adding to 120135541 its reverse (145531021), we get a palindrome (265666562).

The spelling of 120135541 in words is "one hundred twenty million, one hundred thirty-five thousand, five hundred forty-one".