1201457 has 4 divisors (see below), whose sum is σ = 1224180. Its totient is φ = 1178736.

The previous prime is 1201439. The next prime is 1201469. The reversal of 1201457 is 7541021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1048576 + 152881 = 1024^2 + 391^2 .

It is a cyclic number.

It is not a de Polignac number, because 1201457 - 2⁸ = 1201201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11282 + ... + 11387.

It is an arithmetic number, because the mean of its divisors is an integer number (306045).

2^1201457 is an apocalyptic number.

It is an amenable number.

1201457 is a deficient number, since it is larger than the sum of its proper divisors (22723).

1201457 is an equidigital number, since it uses as much as digits as its factorization.

1201457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22722.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 1201457 is about 1096.1099397414. The cubic root of 1201457 is about 106.3088476774.

Adding to 1201457 its reverse (7541021), we get a palindrome (8742478).

The spelling of 1201457 in words is "one million, two hundred one thousand, four hundred fifty-seven".