134799149 has 4 divisors (see below), whose sum is σ = 137667264. Its totient is φ = 131931036.

The previous prime is 134799127. The next prime is 134799151. The reversal of 134799149 is 941997431.

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: 941997431 = 43 ⋅21906917.

It is a cyclic number.

It is not a de Polignac number, because 134799149 - 2¹² = 134795053 is a prime.

It is a super-2 number, since 2×134799149² = 36341621142248402, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (47), and also a Moran number because the ratio is a prime number: 2868067 = 134799149 / (1 + 3 + 4 + 7 + 9 + 9 + 1 + 4 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134799179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433987 + ... + 1434080.

It is an arithmetic number, because the mean of its divisors is an integer number (34416816).

Almost surely, 2^134799149 is an apocalyptic number.

It is an amenable number.

134799149 is a deficient number, since it is larger than the sum of its proper divisors (2868115).

134799149 is an equidigital number, since it uses as much as digits as its factorization.

134799149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2868114.

The product of its digits is 244944, while the sum is 47.

The square root of 134799149 is about 11610.3035705360. The cubic root of 134799149 is about 512.7382500426.

The spelling of 134799149 in words is "one hundred thirty-four million, seven hundred ninety-nine thousand, one hundred forty-nine".