13181026 has 8 divisors (see below), whose sum is σ = 20042604. Its totient is φ = 6500160.

The previous prime is 13180997. The next prime is 13181027. The reversal of 13181026 is 62018131.

It can be written as a sum of positive squares in 2 ways, for example, as 13140625 + 40401 = 3625^2 + 201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 13180988 and 13181006.

It is not an unprimeable number, because it can be changed into a prime (13181027) 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, 44995 + ... + 45286.

Almost surely, 2^13181026 is an apocalyptic number.

13181026 is a deficient number, since it is larger than the sum of its proper divisors (6861578).

13181026 is an equidigital number, since it uses as much as digits as its factorization.

13181026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90356.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 13181026 is about 3630.5682750776. The cubic root of 13181026 is about 236.2198587939.

Adding to 13181026 its reverse (62018131), we get a palindrome (75199157).

The spelling of 13181026 in words is "thirteen million, one hundred eighty-one thousand, twenty-six".