354155149 has 2 divisors, whose sum is σ = 354155150. Its totient is φ = 354155148.

The previous prime is 354155147. The next prime is 354155189. The reversal of 354155149 is 941551453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354117124 + 38025 = 18818^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 354155149 - 2¹ = 354155147 is a prime.

Together with 354155147, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354155143) 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, 177077574 + 177077575.

It is an arithmetic number, because the mean of its divisors is an integer number (177077575).

Almost surely, 2^354155149 is an apocalyptic number.

It is an amenable number.

354155149 is a deficient number, since it is larger than the sum of its proper divisors (1).

354155149 is an equidigital number, since it uses as much as digits as its factorization.

354155149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 37.

The square root of 354155149 is about 18819.0103087277. The cubic root of 354155149 is about 707.5077260703.

The spelling of 354155149 in words is "three hundred fifty-four million, one hundred fifty-five thousand, one hundred forty-nine".