13531202745 has 8 divisors (see below), whose sum is σ = 21649924416. Its totient is φ = 7216641456.

The previous prime is 13531202743. The next prime is 13531202747. The reversal of 13531202745 is 54720213531.

It is an interprime number because it is at equal distance from previous prime (13531202743) and next prime (13531202747).

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

It is not a de Polignac number, because 13531202745 - 2¹ = 13531202743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13531202743) 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, 451040077 + ... + 451040106.

It is an arithmetic number, because the mean of its divisors is an integer number (2706240552).

Almost surely, 2^13531202745 is an apocalyptic number.

13531202745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531202745 is a deficient number, since it is larger than the sum of its proper divisors (8118721671).

13531202745 is an equidigital number, since it uses as much as digits as its factorization.

13531202745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902080191.

The product of its (nonzero) digits is 25200, while the sum is 33.

The spelling of 13531202745 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, seven hundred forty-five".