125251223044 has 6 divisors (see below), whose sum is σ = 219189640334. Its totient is φ = 62625611520.

The previous prime is 125251222997. The next prime is 125251223059. The reversal of 125251223044 is 440322152521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 104013990144 + 21237232900 = 322512^2 + 145730^2 .

It is a junction number, because it is equal to n+sod(n) for n = 125251222997 and 125251223015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656402877 + ... + 15656402884.

Almost surely, 2^125251223044 is an apocalyptic number.

It is an amenable number.

125251223044 is a deficient number, since it is larger than the sum of its proper divisors (93938417290).

125251223044 is a wasteful number, since it uses less digits than its factorization.

125251223044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31312805765 (or 31312805763 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 125251223044 its reverse (440322152521), we get a palindrome (565573375565).

The spelling of 125251223044 in words is "one hundred twenty-five billion, two hundred fifty-one million, two hundred twenty-three thousand, forty-four".