13449975 has 96 divisors (see below), whose sum is σ = 29569536. Its totient is φ = 5222400.

The previous prime is 13449973. The next prime is 13449979. The reversal of 13449975 is 57994431.

It is not a de Polignac number, because 13449975 - 2¹ = 13449973 is a prime.

Its product of digits (136080) is a multiple of the sum of its prime divisors (180).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13449971) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 98107 + ... + 98243.

It is an arithmetic number, because the mean of its divisors is an integer number (308016).

Almost surely, 2^13449975 is an apocalyptic number.

13449975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13449975 is an abundant number, since it is smaller than the sum of its proper divisors (16119561).

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

13449975 is a wasteful number, since it uses less digits than its factorization.

13449975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185 (or 180 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 13449975 is about 3667.4207557901. The cubic root of 13449975 is about 237.8156836257.

The spelling of 13449975 in words is "thirteen million, four hundred forty-nine thousand, nine hundred seventy-five".