2457245 has 8 divisors (see below), whose sum is σ = 3369984. Its totient is φ = 1684944.

The previous prime is 2457241. The next prime is 2457283. The reversal of 2457245 is 5427542.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2457245 - 2² = 2457241 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2¹⁵ + 4 + 5⁷ + 7 + 2¹⁷ + 4⁹ + 5⁹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2457241) 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, 35069 + ... + 35138.

It is an arithmetic number, because the mean of its divisors is an integer number (421248).

2^2457245 is an apocalyptic number.

It is an amenable number.

2457245 is a deficient number, since it is larger than the sum of its proper divisors (912739).

2457245 is an equidigital number, since it uses as much as digits as its factorization.

2457245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70219.

The product of its digits is 11200, while the sum is 29.

The square root of 2457245 is about 1567.5602061803. The cubic root of 2457245 is about 134.9427283360.

The spelling of 2457245 in words is "two million, four hundred fifty-seven thousand, two hundred forty-five".