13070146 has 4 divisors (see below), whose sum is σ = 19605222. Its totient is φ = 6535072.

The previous prime is 13070143. The next prime is 13070149. The reversal of 13070146 is 64107031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64107031 = 6113 ⋅10487.

It is an interprime number because it is at equal distance from previous prime (13070143) and next prime (13070149).

It can be written as a sum of positive squares in only one way, i.e., 12880921 + 189225 = 3589^2 + 435^2 .

It is a super-2 number, since 2×13070146² = 341657432922632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13070143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3267535 + ... + 3267538.

Almost surely, 2^13070146 is an apocalyptic number.

13070146 is a deficient number, since it is larger than the sum of its proper divisors (6535076).

13070146 is an equidigital number, since it uses as much as digits as its factorization.

13070146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6535075.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 13070146 is about 3615.2656887150. The cubic root of 13070146 is about 235.5556250577. Note that the first 3 decimals are identical.

Adding to 13070146 its reverse (64107031), we get a palindrome (77177177).

The spelling of 13070146 in words is "thirteen million, seventy thousand, one hundred forty-six".