13742813 has 4 divisors (see below), whose sum is σ = 15706080. Its totient is φ = 11779548.

The previous prime is 13742803. The next prime is 13742837. The reversal of 13742813 is 31824731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31824731 = 17 ⋅1872043.

It is a cyclic number.

It is not a de Polignac number, because 13742813 - 2⁸ = 13742557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13742803) 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, 981623 + ... + 981636.

It is an arithmetic number, because the mean of its divisors is an integer number (3926520).

Almost surely, 2^13742813 is an apocalyptic number.

It is an amenable number.

13742813 is a deficient number, since it is larger than the sum of its proper divisors (1963267).

13742813 is an equidigital number, since it uses as much as digits as its factorization.

13742813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963266.

The product of its digits is 4032, while the sum is 29.

The square root of 13742813 is about 3707.1300219981. The cubic root of 13742813 is about 239.5292450519.

It can be divided in two parts, 13 and 742813, that multiplied together give a palindrome (9656569).

The spelling of 13742813 in words is "thirteen million, seven hundred forty-two thousand, eight hundred thirteen".