Search a number
120307541 is a prime number
BaseRepresentation
bin1110010101110…
…11111101010101
322101101020220212
413022323331111
5221244320131
615534335205
72660411564
oct712737525
9271336825
10120307541
1161a01922
123435a505
131bc03bc3
1411d99bdb
15a866a2b
hex72bbf55

120307541 has 2 divisors, whose sum is σ = 120307542. Its totient is φ = 120307540.

The previous prime is 120307531. The next prime is 120307543. The reversal of 120307541 is 145703021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89226916 + 31080625 = 9446^2 + 5575^2 .

It is a cyclic number.

It is not a de Polignac number, because 120307541 - 26 = 120307477 is a prime.

Together with 120307543, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120307543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60153770 + 60153771.

It is an arithmetic number, because the mean of its divisors is an integer number (60153771).

Almost surely, 2120307541 is an apocalyptic number.

It is an amenable number.

120307541 is a deficient number, since it is larger than the sum of its proper divisors (1).

120307541 is an equidigital number, since it uses as much as digits as its factorization.

120307541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 120307541 is about 10968.4794297113. The cubic root of 120307541 is about 493.6634228160.

The spelling of 120307541 in words is "one hundred twenty million, three hundred seven thousand, five hundred forty-one".