1201257 has 8 divisors (see below), whose sum is σ = 1779680. Its totient is φ = 800820.

The previous prime is 1201247. The next prime is 1201261. The reversal of 1201257 is 7521021.

It is not a de Polignac number, because 1201257 - 2⁴ = 1201241 is a prime.

It is a Duffinian number.

1201257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1201217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22219 + ... + 22272.

It is an arithmetic number, because the mean of its divisors is an integer number (222460).

2^1201257 is an apocalyptic number.

It is an amenable number.

1201257 is a deficient number, since it is larger than the sum of its proper divisors (578423).

1201257 is an equidigital number, since it uses as much as digits as its factorization.

1201257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44500 (or 44494 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 1201257 is about 1096.0187042200. The cubic root of 1201257 is about 106.3029484652.

Adding to 1201257 its reverse (7521021), we get a palindrome (8722278).

The spelling of 1201257 in words is "one million, two hundred one thousand, two hundred fifty-seven".