426145 has 4 divisors (see below), whose sum is σ = 511380. Its totient is φ = 340912.

The previous prime is 426131. The next prime is 426161. The reversal of 426145 is 541624.

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 204304 + 221841 = 452^2 + 471^2 .

It is a cyclic number.

It is not a de Polignac number, because 426145 - 2¹³ = 417953 is a prime.

It is a super-2 number, since 2×426145² = 363199122050, which contains 22 as substring.

426145 is a lucky number.

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, 42610 + ... + 42619.

It is an arithmetic number, because the mean of its divisors is an integer number (127845).

2⁴²⁶¹⁴⁵ is an apocalyptic number.

It is an amenable number.

426145 is a deficient number, since it is larger than the sum of its proper divisors (85235).

426145 is an equidigital number, since it uses as much as digits as its factorization.

426145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85234.

The product of its digits is 960, while the sum is 22.

The square root of 426145 is about 652.7978247513. The cubic root of 426145 is about 75.2521881021.

Adding to 426145 its reverse (541624), we get a palindrome (967769).

The spelling of 426145 in words is "four hundred twenty-six thousand, one hundred forty-five".