425443145 has 4 divisors (see below), whose sum is σ = 510531780. Its totient is φ = 340354512.

The previous prime is 425443111. The next prime is 425443169. The reversal of 425443145 is 541344524.

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 257377849 + 168065296 = 16043^2 + 12964^2 .

It is a cyclic number.

It is not a de Polignac number, because 425443145 - 2¹⁴ = 425426761 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42544310 + ... + 42544319.

It is an arithmetic number, because the mean of its divisors is an integer number (127632945).

Almost surely, 2^425443145 is an apocalyptic number.

It is an amenable number.

425443145 is a deficient number, since it is larger than the sum of its proper divisors (85088635).

425443145 is an equidigital number, since it uses as much as digits as its factorization.

425443145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85088634.

The product of its digits is 38400, while the sum is 32.

The square root of 425443145 is about 20626.2731728250. The cubic root of 425443145 is about 752.1085229160.

Adding to 425443145 its reverse (541344524), we get a palindrome (966787669).

The spelling of 425443145 in words is "four hundred twenty-five million, four hundred forty-three thousand, one hundred forty-five".