349485109 has 2 divisors, whose sum is σ = 349485110. Its totient is φ = 349485108.

The previous prime is 349485079. The next prime is 349485131. The reversal of 349485109 is 901584943.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 207994084 + 141491025 = 14422^2 + 11895^2 .

It is a cyclic number.

It is not a de Polignac number, because 349485109 - 2⁷ = 349484981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349485139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174742554 + 174742555.

It is an arithmetic number, because the mean of its divisors is an integer number (174742555).

Almost surely, 2^349485109 is an apocalyptic number.

It is an amenable number.

349485109 is a deficient number, since it is larger than the sum of its proper divisors (1).

349485109 is an equidigital number, since it uses as much as digits as its factorization.

349485109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 349485109 is about 18694.5208283069. The cubic root of 349485109 is about 704.3841235391.

The spelling of 349485109 in words is "three hundred forty-nine million, four hundred eighty-five thousand, one hundred nine".