13191450 has 24 divisors (see below), whose sum is σ = 32715168. Its totient is φ = 3517680.

The previous prime is 13191449. The next prime is 13191457. The reversal of 13191450 is 5419131.

It is a self number, because there is not a number n which added to its sum of digits gives 13191450.

It is not an unprimeable number, because it can be changed into a prime (13191457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43822 + ... + 44121.

It is an arithmetic number, because the mean of its divisors is an integer number (1363132).

Almost surely, 2^13191450 is an apocalyptic number.

13191450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13191450 is an abundant number, since it is smaller than the sum of its proper divisors (19523718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13191450 is a wasteful number, since it uses less digits than its factorization.

13191450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87958 (or 87953 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 13191450 is about 3632.0035792934. The cubic root of 13191450 is about 236.2821125969.

The spelling of 13191450 in words is "thirteen million, one hundred ninety-one thousand, four hundred fifty".