13429237 has 4 divisors (see below), whose sum is σ = 13477996. Its totient is φ = 13380480.

The previous prime is 13429223. The next prime is 13429267. The reversal of 13429237 is 73292431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73292431 = 103 ⋅711577.

It can be written as a sum of positive squares in 2 ways, for example, as 8994001 + 4435236 = 2999^2 + 2106^2 .

It is a cyclic number.

It is not a de Polignac number, because 13429237 - 2⁷ = 13429109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13429199 and 13429208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13429267) 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, 23964 + ... + 24517.

It is an arithmetic number, because the mean of its divisors is an integer number (3369499).

Almost surely, 2^13429237 is an apocalyptic number.

It is an amenable number.

13429237 is a deficient number, since it is larger than the sum of its proper divisors (48759).

13429237 is an equidigital number, since it uses as much as digits as its factorization.

13429237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48758.

The product of its digits is 9072, while the sum is 31.

The square root of 13429237 is about 3664.5923374913. The cubic root of 13429237 is about 237.6933944628.

The spelling of 13429237 in words is "thirteen million, four hundred twenty-nine thousand, two hundred thirty-seven".