31145035133545 has 8 divisors (see below), whose sum is σ = 38579656423680. Its totient is φ = 24112285264560.

The previous prime is 31145035133501. The next prime is 31145035133647. The reversal of 31145035133545 is 54533153054113.

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

It is a de Polignac number, because none of the positive numbers 2^k-31145035133545 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100467855115 + ... + 100467855424.

It is an arithmetic number, because the mean of its divisors is an integer number (4822457052960).

Almost surely, 2^{31145035133545} is an apocalyptic number.

It is an amenable number.

31145035133545 is a deficient number, since it is larger than the sum of its proper divisors (7434621290135).

31145035133545 is a wasteful number, since it uses less digits than its factorization.

31145035133545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200935710575.

The product of its (nonzero) digits is 810000, while the sum is 43.

Adding to 31145035133545 its reverse (54533153054113), we get a palindrome (85678188187658).

The spelling of 31145035133545 in words is "thirty-one trillion, one hundred forty-five billion, thirty-five million, one hundred thirty-three thousand, five hundred forty-five".