245131231454 has 4 divisors (see below), whose sum is σ = 367696847184. Its totient is φ = 122565615726.

The previous prime is 245131231439. The next prime is 245131231463. The reversal of 245131231454 is 454132131542.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61282807862 + ... + 61282807865.

It is an arithmetic number, because the mean of its divisors is an integer number (91924211796).

Almost surely, 2^245131231454 is an apocalyptic number.

245131231454 is a deficient number, since it is larger than the sum of its proper divisors (122565615730).

245131231454 is a wasteful number, since it uses less digits than its factorization.

245131231454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122565615729.

The product of its digits is 57600, while the sum is 35.

Adding to 245131231454 its reverse (454132131542), we get a palindrome (699263362996).

The spelling of 245131231454 in words is "two hundred forty-five billion, one hundred thirty-one million, two hundred thirty-one thousand, four hundred fifty-four".