13146242 has 4 divisors (see below), whose sum is σ = 19719366. Its totient is φ = 6573120.

The previous prime is 13146241. The next prime is 13146247. The reversal of 13146242 is 24264131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24264131 = 317 ⋅76543.

It can be written as a sum of positive squares in only one way, i.e., 7187761 + 5958481 = 2681^2 + 2441^2 .

It is not an unprimeable number, because it can be changed into a prime (13146241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3286559 + ... + 3286562.

Almost surely, 2^13146242 is an apocalyptic number.

13146242 is a deficient number, since it is larger than the sum of its proper divisors (6573124).

13146242 is an equidigital number, since it uses as much as digits as its factorization.

13146242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6573123.

The product of its digits is 1152, while the sum is 23.

The square root of 13146242 is about 3625.7746758451. The cubic root of 13146242 is about 236.0118853537.

The spelling of 13146242 in words is "thirteen million, one hundred forty-six thousand, two hundred forty-two".