13538208151 has 4 divisors (see below), whose sum is σ = 14579608792. Its totient is φ = 12496807512.

The previous prime is 13538208143. The next prime is 13538208197. The reversal of 13538208151 is 15180283531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13538208151 - 2³ = 13538208143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13538208151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13538218151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520700301 + ... + 520700326.

It is an arithmetic number, because the mean of its divisors is an integer number (3644902198).

Almost surely, 2^13538208151 is an apocalyptic number.

13538208151 is a deficient number, since it is larger than the sum of its proper divisors (1041400641).

13538208151 is a wasteful number, since it uses less digits than its factorization.

13538208151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041400640.

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 13538208151 in words is "thirteen billion, five hundred thirty-eight million, two hundred eight thousand, one hundred fifty-one".