129414349 has 4 divisors (see below), whose sum is σ = 129951580. Its totient is φ = 128877120.

The previous prime is 129414323. The next prime is 129414379. The reversal of 129414349 is 943414921.

129414349 = T₉₂₈₇ + T₉₂₈₈ + T₉₂₈₉.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 943414921 = 29 ⋅32531549.

It can be written as a sum of positive squares in 2 ways, for example, as 41860900 + 87553449 = 6470^2 + 9357^2 .

It is a cyclic number.

It is not a de Polignac number, because 129414349 - 2¹³ = 129406157 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129414379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 268254 + ... + 268735.

It is an arithmetic number, because the mean of its divisors is an integer number (32487895).

Almost surely, 2^129414349 is an apocalyptic number.

129414349 is the 9289-th centered triangular number.

It is an amenable number.

129414349 is a deficient number, since it is larger than the sum of its proper divisors (537231).

129414349 is an equidigital number, since it uses as much as digits as its factorization.

129414349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537230.

The product of its digits is 31104, while the sum is 37.

The square root of 129414349 is about 11376.0427653908. The cubic root of 129414349 is about 505.8178415486.

The spelling of 129414349 in words is "one hundred twenty-nine million, four hundred fourteen thousand, three hundred forty-nine".