13250737 has 4 divisors (see below), whose sum is σ = 13826880. Its totient is φ = 12674596.

The previous prime is 13250723. The next prime is 13250753. The reversal of 13250737 is 73705231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73705231 = 1063 ⋅69337.

It is a cyclic number.

It is not a de Polignac number, because 13250737 - 2¹⁵ = 13217969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13250707) 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, 288037 + ... + 288082.

It is an arithmetic number, because the mean of its divisors is an integer number (3456720).

Almost surely, 2^13250737 is an apocalyptic number.

It is an amenable number.

13250737 is a deficient number, since it is larger than the sum of its proper divisors (576143).

13250737 is an equidigital number, since it uses as much as digits as its factorization.

13250737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576142.

The product of its (nonzero) digits is 4410, while the sum is 28.

The square root of 13250737 is about 3640.1561779682. The cubic root of 13250737 is about 236.6355618272.

Adding to 13250737 its reverse (73705231), we get a palindrome (86955968).

The spelling of 13250737 in words is "thirteen million, two hundred fifty thousand, seven hundred thirty-seven".