245254143 has 4 divisors (see below), whose sum is σ = 327005528. Its totient is φ = 163502760.

The previous prime is 245254117. The next prime is 245254151. The reversal of 245254143 is 341452542.

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

It is not a de Polignac number, because 245254143 - 2⁸ = 245253887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245254143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245254193) 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, 40875688 + ... + 40875693.

It is an arithmetic number, because the mean of its divisors is an integer number (81751382).

Almost surely, 2^245254143 is an apocalyptic number.

245254143 is a deficient number, since it is larger than the sum of its proper divisors (81751385).

245254143 is an equidigital number, since it uses as much as digits as its factorization.

245254143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81751384.

The product of its digits is 19200, while the sum is 30.

The square root of 245254143 is about 15660.5920386172. The cubic root of 245254143 is about 625.9487610618.

The spelling of 245254143 in words is "two hundred forty-five million, two hundred fifty-four thousand, one hundred forty-three".