245134431542 has 128 divisors (see below), whose sum is σ = 499732208640. Its totient is φ = 87089333760.

The previous prime is 245134431539. The next prime is 245134431547.

245134431542 is nontrivially palindromic in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 245134431496 and 245134431505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245134431547) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 56260028 + ... + 56264384.

It is an arithmetic number, because the mean of its divisors is an integer number (3904157880).

Almost surely, 2^245134431542 is an apocalyptic number.

245134431542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

245134431542 is an abundant number, since it is smaller than the sum of its proper divisors (254597777098).

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

245134431542 is a wasteful number, since it uses less digits than its factorization.

245134431542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4726.

The product of its digits is 230400, while the sum is 38.

It can be divided in two parts, 245134 and 431542, that added together give a palindrome (676676).

The spelling of 245134431542 in words is "two hundred forty-five billion, one hundred thirty-four million, four hundred thirty-one thousand, five hundred forty-two".