13400149 has 16 divisors (see below), whose sum is σ = 16433280. Its totient is φ = 10670400.

The previous prime is 13400147. The next prime is 13400161. The reversal of 13400149 is 94100431.

13400149 = T₆₅₇ + T₆₅₈ + ... + T₇₁₃.

13400149 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13400149 - 2¹ = 13400147 is a prime.

It is a Duffinian number.

13400149 is strictly pandigital in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13400141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6099 + ... + 7999.

It is an arithmetic number, because the mean of its divisors is an integer number (1027080).

Almost surely, 2^13400149 is an apocalyptic number.

13400149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13400149 is a deficient number, since it is larger than the sum of its proper divisors (3033131).

13400149 is a wasteful number, since it uses less digits than its factorization.

13400149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1980.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13400149 is about 3660.6213953371. The cubic root of 13400149 is about 237.5216541660.

The spelling of 13400149 in words is "thirteen million, four hundred thousand, one hundred forty-nine".