346427149 has 2 divisors, whose sum is σ = 346427150. Its totient is φ = 346427148.

The previous prime is 346427141. The next prime is 346427161. The reversal of 346427149 is 941724643.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 268369924 + 78057225 = 16382^2 + 8835^2 .

It is a cyclic number.

It is not a de Polignac number, because 346427149 - 2³ = 346427141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (346427141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173213574 + 173213575.

It is an arithmetic number, because the mean of its divisors is an integer number (173213575).

Almost surely, 2^346427149 is an apocalyptic number.

It is an amenable number.

346427149 is a deficient number, since it is larger than the sum of its proper divisors (1).

346427149 is an equidigital number, since it uses as much as digits as its factorization.

346427149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 40.

The square root of 346427149 is about 18612.5535324952. The cubic root of 346427149 is about 702.3236718413.

The spelling of 346427149 in words is "three hundred forty-six million, four hundred twenty-seven thousand, one hundred forty-nine".