245432123254 has 4 divisors (see below), whose sum is σ = 368148184884. Its totient is φ = 122716061626.

The previous prime is 245432123191. The next prime is 245432123281. The reversal of 245432123254 is 452321234542.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 452321234542 = 2 ⋅226160617271.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61358030812 + ... + 61358030815.

It is an arithmetic number, because the mean of its divisors is an integer number (92037046221).

Almost surely, 2^245432123254 is an apocalyptic number.

245432123254 is a deficient number, since it is larger than the sum of its proper divisors (122716061630).

245432123254 is a wasteful number, since it uses less digits than its factorization.

245432123254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122716061629.

The product of its digits is 230400, while the sum is 37.

Adding to 245432123254 its reverse (452321234542), we get a palindrome (697753357796).

The spelling of 245432123254 in words is "two hundred forty-five billion, four hundred thirty-two million, one hundred twenty-three thousand, two hundred fifty-four".