245324405 has 4 divisors (see below), whose sum is σ = 294389292. Its totient is φ = 196259520.

The previous prime is 245324389. The next prime is 245324407. The reversal of 245324405 is 504423542.

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 127080529 + 118243876 = 11273^2 + 10874^2 .

It is not a de Polignac number, because 245324405 - 2⁴ = 245324389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245324407) 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, 24532436 + ... + 24532445.

It is an arithmetic number, because the mean of its divisors is an integer number (73597323).

Almost surely, 2^245324405 is an apocalyptic number.

It is an amenable number.

245324405 is a deficient number, since it is larger than the sum of its proper divisors (49064887).

245324405 is an equidigital number, since it uses as much as digits as its factorization.

245324405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49064886.

The product of its (nonzero) digits is 19200, while the sum is 29.

The square root of 245324405 is about 15662.8351520406. The cubic root of 245324405 is about 626.0085306435.

Adding to 245324405 its reverse (504423542), we get a palindrome (749747947).

The spelling of 245324405 in words is "two hundred forty-five million, three hundred twenty-four thousand, four hundred five".