13149073 has 4 divisors (see below), whose sum is σ = 15027520. Its totient is φ = 11270628.

The previous prime is 13149067. The next prime is 13149091. The reversal of 13149073 is 37094131.

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.

It is a cyclic number.

It is not a de Polignac number, because 13149073 - 2¹⁷ = 13018001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13149043) 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, 939213 + ... + 939226.

It is an arithmetic number, because the mean of its divisors is an integer number (3756880).

Almost surely, 2^13149073 is an apocalyptic number.

It is an amenable number.

13149073 is a deficient number, since it is larger than the sum of its proper divisors (1878447).

13149073 is an equidigital number, since it uses as much as digits as its factorization.

13149073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878446.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13149073 is about 3626.1650541585. The cubic root of 13149073 is about 236.0288255990.

The spelling of 13149073 in words is "thirteen million, one hundred forty-nine thousand, seventy-three".