245431204126 has 4 divisors (see below), whose sum is σ = 368146806192. Its totient is φ = 122715602062.

The previous prime is 245431204121. The next prime is 245431204141. The reversal of 245431204126 is 621402134542.

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

It is a junction number, because it is equal to n+sod(n) for n = 245431204091 and 245431204100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245431204121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61357801030 + ... + 61357801033.

It is an arithmetic number, because the mean of its divisors is an integer number (92036701548).

Almost surely, 2^245431204126 is an apocalyptic number.

245431204126 is a deficient number, since it is larger than the sum of its proper divisors (122715602066).

245431204126 is a wasteful number, since it uses less digits than its factorization.

245431204126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122715602065.

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 245431204126 its reverse (621402134542), we get a palindrome (866833338668).

The spelling of 245431204126 in words is "two hundred forty-five billion, four hundred thirty-one million, two hundred four thousand, one hundred twenty-six".