140344015425 has 24 divisors (see below), whose sum is σ = 232464407040. Its totient is φ = 74711764800.

The previous prime is 140344015421. The next prime is 140344015531. The reversal of 140344015425 is 524510443041.

It is a happy number.

It is not a de Polignac number, because 140344015425 - 2² = 140344015421 is a prime.

It is a super-2 number, since 2×140344015425² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (140344015421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1688865 + ... + 1770014.

It is an arithmetic number, because the mean of its divisors is an integer number (9686016960).

Almost surely, 2^140344015425 is an apocalyptic number.

140344015425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140344015425 is a deficient number, since it is larger than the sum of its proper divisors (92120391615).

140344015425 is a wasteful number, since it uses less digits than its factorization.

140344015425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3459433 (or 3459428 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 33.

Adding to 140344015425 its reverse (524510443041), we get a palindrome (664854458466).

The spelling of 140344015425 in words is "one hundred forty billion, three hundred forty-four million, fifteen thousand, four hundred twenty-five".