13449137 has 4 divisors (see below), whose sum is σ = 14483700. Its totient is φ = 12414576.

The previous prime is 13449119. The next prime is 13449143. The reversal of 13449137 is 73194431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73194431 = 53 ⋅1381027.

It can be written as a sum of positive squares in 2 ways, for example, as 5837056 + 7612081 = 2416^2 + 2759^2 .

It is a cyclic number.

It is not a de Polignac number, because 13449137 - 2¹⁸ = 13186993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13449157) 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, 517262 + ... + 517287.

It is an arithmetic number, because the mean of its divisors is an integer number (3620925).

Almost surely, 2^13449137 is an apocalyptic number.

It is an amenable number.

13449137 is a deficient number, since it is larger than the sum of its proper divisors (1034563).

13449137 is a wasteful number, since it uses less digits than its factorization.

13449137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1034562.

The product of its digits is 9072, while the sum is 32.

The square root of 13449137 is about 3667.3065047798. The cubic root of 13449137 is about 237.8107444918.

The spelling of 13449137 in words is "thirteen million, four hundred forty-nine thousand, one hundred thirty-seven".