13142538 has 24 divisors (see below), whose sum is σ = 28641600. Its totient is φ = 4355304.

The previous prime is 13142537. The next prime is 13142551. The reversal of 13142538 is 83524131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13142537) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1183 + ... + 5261.

It is an arithmetic number, because the mean of its divisors is an integer number (1193400).

Almost surely, 2^13142538 is an apocalyptic number.

13142538 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13142538 is an abundant number, since it is smaller than the sum of its proper divisors (15499062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13142538 is a wasteful number, since it uses less digits than its factorization.

13142538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4266 (or 4263 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 13142538 is about 3625.2638524665. The cubic root of 13142538 is about 235.9897175449.

Adding to 13142538 its reverse (83524131), we get a palindrome (96666669).

The spelling of 13142538 in words is "thirteen million, one hundred forty-two thousand, five hundred thirty-eight".