13420146 has 16 divisors (see below), whose sum is σ = 26879904. Its totient is φ = 4466784.

The previous prime is 13420139. The next prime is 13420153. The reversal of 13420146 is 64102431.

13420146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13420139) and next prime (13420153).

It is a super-2 number, since 2×13420146² = 360200637322632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4545 + ... + 6891.

It is an arithmetic number, because the mean of its divisors is an integer number (1679994).

Almost surely, 2^13420146 is an apocalyptic number.

13420146 is an abundant number, since it is smaller than the sum of its proper divisors (13459758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13420146 is a wasteful number, since it uses less digits than its factorization.

13420146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3305.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 13420146 is about 3663.3517439634. The cubic root of 13420146 is about 237.6397463805.

Adding to 13420146 its reverse (64102431), we get a palindrome (77522577).

The spelling of 13420146 in words is "thirteen million, four hundred twenty thousand, one hundred forty-six".