354348139 has 2 divisors, whose sum is σ = 354348140. Its totient is φ = 354348138.

The previous prime is 354348131. The next prime is 354348167. The reversal of 354348139 is 931843453.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 354348139 - 2³ = 354348131 is a prime.

It is a super-2 number, since 2×354348139² = 251125207225526642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (354348131) 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 as a sum of consecutive naturals, namely, 177174069 + 177174070.

It is an arithmetic number, because the mean of its divisors is an integer number (177174070).

Almost surely, 2^354348139 is an apocalyptic number.

354348139 is a deficient number, since it is larger than the sum of its proper divisors (1).

354348139 is an equidigital number, since it uses as much as digits as its factorization.

354348139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The square root of 354348139 is about 18824.1371382595. The cubic root of 354348139 is about 707.6362169515.

The spelling of 354348139 in words is "three hundred fifty-four million, three hundred forty-eight thousand, one hundred thirty-nine".