245243454 has 16 divisors (see below), whose sum is σ = 490683648. Its totient is φ = 81715032.

The previous prime is 245243441. The next prime is 245243483. The reversal of 245243454 is 454342542.

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, 11739 + ... + 25065.

It is an arithmetic number, because the mean of its divisors is an integer number (30667728).

Almost surely, 2^245243454 is an apocalyptic number.

245243454 is an abundant number, since it is smaller than the sum of its proper divisors (245440194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245243454 is a wasteful number, since it uses less digits than its factorization.

245243454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16399.

The product of its digits is 76800, while the sum is 33.

The square root of 245243454 is about 15660.2507642758. The cubic root of 245243454 is about 625.9396672793.

Adding to 245243454 its reverse (454342542), we get a palindrome (699585996).

The spelling of 245243454 in words is "two hundred forty-five million, two hundred forty-three thousand, four hundred fifty-four".