348040129 has 4 divisors (see below), whose sum is σ = 352807876. Its totient is φ = 343272384.

The previous prime is 348040127. The next prime is 348040139. The reversal of 348040129 is 921040843.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 127577025 + 220463104 = 11295^2 + 14848^2 .

It is a cyclic number.

It is not a de Polignac number, because 348040129 - 2¹ = 348040127 is a prime.

It is a super-2 number, since 2×348040129² = 242263862788673282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 348040129.

It is not an unprimeable number, because it can be changed into a prime (348040127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2383764 + ... + 2383909.

It is an arithmetic number, because the mean of its divisors is an integer number (88201969).

Almost surely, 2^348040129 is an apocalyptic number.

It is an amenable number.

348040129 is a deficient number, since it is larger than the sum of its proper divisors (4767747).

348040129 is an equidigital number, since it uses as much as digits as its factorization.

348040129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767746.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 348040129 is about 18655.8336452703. The cubic root of 348040129 is about 703.4120010887.

The spelling of 348040129 in words is "three hundred forty-eight million, forty thousand, one hundred twenty-nine".