13149434 has 8 divisors (see below), whose sum is σ = 19775028. Its totient is φ = 6557760.

The previous prime is 13149431. The next prime is 13149457. The reversal of 13149434 is 43494131.

13149434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12623809 + 525625 = 3553^2 + 725^2 .

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

It is a super-2 number, since 2×13149434² = 345815229040712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13149397 and 13149406.

It is not an unprimeable number, because it can be changed into a prime (13149431) 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, 7487 + ... + 9074.

Almost surely, 2^13149434 is an apocalyptic number.

13149434 is a deficient number, since it is larger than the sum of its proper divisors (6625594).

13149434 is a wasteful number, since it uses less digits than its factorization.

13149434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16960.

The product of its digits is 5184, while the sum is 29.

The square root of 13149434 is about 3626.2148309222. The cubic root of 13149434 is about 236.0309855897.

The spelling of 13149434 in words is "thirteen million, one hundred forty-nine thousand, four hundred thirty-four".