2401257 has 4 divisors (see below), whose sum is σ = 3201680. Its totient is φ = 1600836.

The previous prime is 2401253. The next prime is 2401261. The reversal of 2401257 is 7521042.

2401257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (2401253) and next prime (2401261).

It is not a de Polignac number, because 2401257 - 2² = 2401253 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 (2401253) 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, 400207 + ... + 400212.

It is an arithmetic number, because the mean of its divisors is an integer number (800420).

2^2401257 is an apocalyptic number.

It is an amenable number.

2401257 is a deficient number, since it is larger than the sum of its proper divisors (800423).

2401257 is an equidigital number, since it uses as much as digits as its factorization.

2401257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800422.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 2401257 is about 1549.5989803817. The cubic root of 2401257 is about 133.9099603040.

Adding to 2401257 its reverse (7521042), we get a palindrome (9922299).

The spelling of 2401257 in words is "two million, four hundred one thousand, two hundred fifty-seven".