120005257 has 2 divisors, whose sum is σ = 120005258. Its totient is φ = 120005256.

The previous prime is 120005231. The next prime is 120005267. The reversal of 120005257 is 752500021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87160896 + 32844361 = 9336^2 + 5731^2 .

It is a cyclic number.

It is not a de Polignac number, because 120005257 - 2¹¹ = 120003209 is a prime.

It is not a weakly prime, because it can be changed into another prime (120005267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60002628 + 60002629.

It is an arithmetic number, because the mean of its divisors is an integer number (60002629).

Almost surely, 2^120005257 is an apocalyptic number.

It is an amenable number.

120005257 is a deficient number, since it is larger than the sum of its proper divisors (1).

120005257 is an equidigital number, since it uses as much as digits as its factorization.

120005257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 22.

The square root of 120005257 is about 10954.6910955992. The cubic root of 120005257 is about 493.2496174703.

Adding to 120005257 its reverse (752500021), we get a palindrome (872505278).

The spelling of 120005257 in words is "one hundred twenty million, five thousand, two hundred fifty-seven".