424857145 has 4 divisors (see below), whose sum is σ = 509828580. Its totient is φ = 339885712.

The previous prime is 424857143. The next prime is 424857197. The reversal of 424857145 is 541758424.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 153958464 + 270898681 = 12408^2 + 16459^2 .

It is a cyclic number.

It is not a de Polignac number, because 424857145 - 2¹ = 424857143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 424857098 and 424857107.

It is not an unprimeable number, because it can be changed into a prime (424857143) 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, 42485710 + ... + 42485719.

It is an arithmetic number, because the mean of its divisors is an integer number (127457145).

Almost surely, 2^424857145 is an apocalyptic number.

It is an amenable number.

424857145 is a deficient number, since it is larger than the sum of its proper divisors (84971435).

424857145 is an equidigital number, since it uses as much as digits as its factorization.

424857145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84971434.

The product of its digits is 179200, while the sum is 40.

The square root of 424857145 is about 20612.0630942174. The cubic root of 424857145 is about 751.7630493323.

The spelling of 424857145 in words is "four hundred twenty-four million, eight hundred fifty-seven thousand, one hundred forty-five".