31648129145 has 8 divisors (see below), whose sum is σ = 39628961856. Its totient is φ = 24217698736.

The previous prime is 31648129127. The next prime is 31648129147. The reversal of 31648129145 is 54192184613.

31648129145 is digitally balanced in base 11, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31648129145 - 2⁶ = 31648129081 is a prime.

It is a Duffinian number.

31648129145 is strictly pandigital in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 31648129096 and 31648129105.

It is not an unprimeable number, because it can be changed into a prime (31648129147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137600447 + ... + 137600676.

It is an arithmetic number, because the mean of its divisors is an integer number (4953620232).

Almost surely, 2^31648129145 is an apocalyptic number.

It is an amenable number.

31648129145 is a deficient number, since it is larger than the sum of its proper divisors (7980832711).

31648129145 is a wasteful number, since it uses less digits than its factorization.

31648129145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275201151.

The product of its digits is 207360, while the sum is 44.

The spelling of 31648129145 in words is "thirty-one billion, six hundred forty-eight million, one hundred twenty-nine thousand, one hundred forty-five".