245498143 has 4 divisors (see below), whose sum is σ = 267816168. Its totient is φ = 223180120.

The previous prime is 245498129. The next prime is 245498167. The reversal of 245498143 is 341894542.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245498143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245498096 and 245498105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245498243) 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, 11158996 + ... + 11159017.

It is an arithmetic number, because the mean of its divisors is an integer number (66954042).

Almost surely, 2^245498143 is an apocalyptic number.

245498143 is a deficient number, since it is larger than the sum of its proper divisors (22318025).

245498143 is a wasteful number, since it uses less digits than its factorization.

245498143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22318024.

The product of its digits is 138240, while the sum is 40.

The square root of 245498143 is about 15668.3803566291. The cubic root of 245498143 is about 626.1562748862.

The spelling of 245498143 in words is "two hundred forty-five million, four hundred ninety-eight thousand, one hundred forty-three".