348621139 has 4 divisors (see below), whose sum is σ = 366969640. Its totient is φ = 330272640.

The previous prime is 348621109. The next prime is 348621181. The reversal of 348621139 is 931126843.

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

It is a cyclic number.

It is not a de Polignac number, because 348621139 - 2⁵ = 348621107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 348621098 and 348621107.

It is not an unprimeable number, because it can be changed into a prime (348621109) 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, 9174222 + ... + 9174259.

It is an arithmetic number, because the mean of its divisors is an integer number (91742410).

Almost surely, 2^348621139 is an apocalyptic number.

348621139 is a deficient number, since it is larger than the sum of its proper divisors (18348501).

348621139 is a wasteful number, since it uses less digits than its factorization.

348621139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18348500.

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

The square root of 348621139 is about 18671.3989566931. The cubic root of 348621139 is about 703.8032032945.

The spelling of 348621139 in words is "three hundred forty-eight million, six hundred twenty-one thousand, one hundred thirty-nine".