13530513531 has 8 divisors (see below), whose sum is σ = 18825062400. Its totient is φ = 8628153512.

The previous prime is 13530513497. The next prime is 13530513539. The reversal of 13530513531 is 13531503531.

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 13530513531 - 2⁹ = 13530513019 is a prime.

It is a super-2 number, since 2×13530513531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13530513539) 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, 98047131 + ... + 98047268.

It is an arithmetic number, because the mean of its divisors is an integer number (2353132800).

Almost surely, 2^13530513531 is an apocalyptic number.

13530513531 is a deficient number, since it is larger than the sum of its proper divisors (5294548869).

13530513531 is a wasteful number, since it uses less digits than its factorization.

13530513531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196094425.

The product of its (nonzero) digits is 10125, while the sum is 30.

The spelling of 13530513531 in words is "thirteen billion, five hundred thirty million, five hundred thirteen thousand, five hundred thirty-one".