4157245 has 8 divisors (see below), whose sum is σ = 4999680. Its totient is φ = 3318480.

The previous prime is 4157239. The next prime is 4157269. The reversal of 4157245 is 5427514.

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

It is not a de Polignac number, because 4157245 - 2⁵ = 4157213 is a prime.

4157245 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3700 + ... + 4690.

It is an arithmetic number, because the mean of its divisors is an integer number (624960).

Almost surely, 2^4157245 is an apocalyptic number.

It is an amenable number.

4157245 is a deficient number, since it is larger than the sum of its proper divisors (842435).

4157245 is an equidigital number, since it uses as much as digits as its factorization.

4157245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835.

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

The square root of 4157245 is about 2038.9323186413. The cubic root of 4157245 is about 160.7935189792.

The spelling of 4157245 in words is "four million, one hundred fifty-seven thousand, two hundred forty-five".