31530140534 has 8 divisors (see below), whose sum is σ = 47297767440. Its totient is φ = 15764218056.

The previous prime is 31530140527. The next prime is 31530140549. The reversal of 31530140534 is 43504103513.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31530140497 and 31530140506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378809 + ... + 454484.

It is an arithmetic number, because the mean of its divisors is an integer number (5912220930).

Almost surely, 2^31530140534 is an apocalyptic number.

31530140534 is a deficient number, since it is larger than the sum of its proper divisors (15767626906).

31530140534 is a wasteful number, since it uses less digits than its factorization.

31530140534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852214.

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 31530140534 in words is "thirty-one billion, five hundred thirty million, one hundred forty thousand, five hundred thirty-four".