1230457 has 4 divisors (see below), whose sum is σ = 1241460. Its totient is φ = 1219456.

The previous prime is 1230433. The next prime is 1230461. The reversal of 1230457 is 7540321.

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 29241 + 1201216 = 171^2 + 1096^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230457 - 2⁷ = 1230329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5332 + ... + 5557.

It is an arithmetic number, because the mean of its divisors is an integer number (310365).

2^1230457 is an apocalyptic number.

It is an amenable number.

1230457 is a deficient number, since it is larger than the sum of its proper divisors (11003).

1230457 is a wasteful number, since it uses less digits than its factorization.

1230457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11002.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 1230457 is about 1109.2596630185. The cubic root of 1230457 is about 107.1573949374.

Adding to 1230457 its reverse (7540321), we get a palindrome (8770778).

The spelling of 1230457 in words is "one million, two hundred thirty thousand, four hundred fifty-seven".