13149028 has 12 divisors (see below), whose sum is σ = 23572332. Its totient is φ = 6414080.

The previous prime is 13149001. The next prime is 13149043. The reversal of 13149028 is 82094131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2534464 + 10614564 = 1592^2 + 3258^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13148987 and 13149005.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39925 + ... + 40252.

It is an arithmetic number, because the mean of its divisors is an integer number (1964361).

Almost surely, 2^13149028 is an apocalyptic number.

It is an amenable number.

13149028 is a deficient number, since it is larger than the sum of its proper divisors (10423304).

13149028 is a wasteful number, since it uses less digits than its factorization.

13149028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80222 (or 80220 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 13149028 is about 3626.1588492508. The cubic root of 13149028 is about 236.0285563453.

Adding to 13149028 its product of nonzero digits (1728), we get a triangular number (13150756 = T₅₁₂₈).

The spelling of 13149028 in words is "thirteen million, one hundred forty-nine thousand, twenty-eight".