1457245 has 8 divisors (see below), whose sum is σ = 1796184. Its totient is φ = 1134144.

The previous prime is 1457219. The next prime is 1457251. The reversal of 1457245 is 5427541.

It can be written as a sum of positive squares in 4 ways, for example, as 178084 + 1279161 = 422^2 + 1131^2 .

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 1457245 - 2⁵ = 1457213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3754 + ... + 4123.

It is an arithmetic number, because the mean of its divisors is an integer number (224523).

2^1457245 is an apocalyptic number.

It is an amenable number.

1457245 is a deficient number, since it is larger than the sum of its proper divisors (338939).

1457245 is an equidigital number, since it uses as much as digits as its factorization.

1457245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7919.

The product of its digits is 5600, while the sum is 28.

The square root of 1457245 is about 1207.1640319360. The cubic root of 1457245 is about 113.3733182635.

It can be divided in two parts, 145 and 7245, that multiplied together give a triangular number (1050525 = T₁₄₄₉).

The spelling of 1457245 in words is "one million, four hundred fifty-seven thousand, two hundred forty-five".