140244231425 has 24 divisors (see below), whose sum is σ = 175597090680. Its totient is φ = 111103488000.

The previous prime is 140244231401. The next prime is 140244231431. The reversal of 140244231425 is 524132442041.

It can be written as a sum of positive squares in 12 ways, for example, as 55421163889 + 84823067536 = 235417^2 + 291244^2 .

It is a de Polignac number, because none of the positive numbers 2^k-140244231425 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 140244231391 and 140244231400.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5166689 + ... + 5193761.

It is an arithmetic number, because the mean of its divisors is an integer number (7316545445).

Almost surely, 2^140244231425 is an apocalyptic number.

It is an amenable number.

140244231425 is a deficient number, since it is larger than the sum of its proper divisors (35352859255).

140244231425 is a wasteful number, since it uses less digits than its factorization.

140244231425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29093 (or 29088 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 140244231425 its reverse (524132442041), we get a palindrome (664376673466).

The spelling of 140244231425 in words is "one hundred forty billion, two hundred forty-four million, two hundred thirty-one thousand, four hundred twenty-five".