13142481 has 32 divisors (see below), whose sum is σ = 20459520. Its totient is φ = 7425600.

The previous prime is 13142473. The next prime is 13142537. The reversal of 13142481 is 18424131.

It is not a de Polignac number, because 13142481 - 2³ = 13142473 is a prime.

It is a super-2 number, since 2×13142481² = 345449613670722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13142401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29446 + ... + 29888.

It is an arithmetic number, because the mean of its divisors is an integer number (639360).

Almost surely, 2^13142481 is an apocalyptic number.

13142481 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13142481 is a deficient number, since it is larger than the sum of its proper divisors (7317039).

13142481 is a wasteful number, since it uses less digits than its factorization.

13142481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517.

The product of its digits is 768, while the sum is 24.

The square root of 13142481 is about 3625.2559909612. The cubic root of 13142481 is about 235.9893763771.

The spelling of 13142481 in words is "thirteen million, one hundred forty-two thousand, four hundred eighty-one".