120557141 has 2 divisors, whose sum is σ = 120557142. Its totient is φ = 120557140.

The previous prime is 120557113. The next prime is 120557153. The reversal of 120557141 is 141755021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115132900 + 5424241 = 10730^2 + 2329^2 .

It is an emirp because it is prime and its reverse (141755021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 120557141 - 2²² = 116362837 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120557141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120557111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60278570 + 60278571.

It is an arithmetic number, because the mean of its divisors is an integer number (60278571).

Almost surely, 2^120557141 is an apocalyptic number.

It is an amenable number.

120557141 is a deficient number, since it is larger than the sum of its proper divisors (1).

120557141 is an equidigital number, since it uses as much as digits as its factorization.

120557141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 120557141 is about 10979.8515928040. The cubic root of 120557141 is about 494.0045853465.

The spelling of 120557141 in words is "one hundred twenty million, five hundred fifty-seven thousand, one hundred forty-one".