1348257 has 4 divisors (see below), whose sum is σ = 1797680. Its totient is φ = 898836.

The previous prime is 1348247. The next prime is 1348271. The reversal of 1348257 is 7528431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1348257 - 2⁷ = 1348129 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1348247) 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, 224707 + ... + 224712.

It is an arithmetic number, because the mean of its divisors is an integer number (449420).

2^1348257 is an apocalyptic number.

It is an amenable number.

1348257 is a deficient number, since it is larger than the sum of its proper divisors (449423).

1348257 is an equidigital number, since it uses as much as digits as its factorization.

1348257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449422.

The product of its digits is 6720, while the sum is 30.

The square root of 1348257 is about 1161.1446938259. The cubic root of 1348257 is about 110.4733595340.

The spelling of 1348257 in words is "one million, three hundred forty-eight thousand, two hundred fifty-seven".