354861049 has 2 divisors, whose sum is σ = 354861050. Its totient is φ = 354861048.

The previous prime is 354861041. The next prime is 354861137. The reversal of 354861049 is 940168453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 326163600 + 28697449 = 18060^2 + 5357^2 .

It is a cyclic number.

It is not a de Polignac number, because 354861049 - 2³ = 354861041 is a prime.

It is not a weakly prime, because it can be changed into another prime (354861041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177430524 + 177430525.

It is an arithmetic number, because the mean of its divisors is an integer number (177430525).

Almost surely, 2^354861049 is an apocalyptic number.

It is an amenable number.

354861049 is a deficient number, since it is larger than the sum of its proper divisors (1).

354861049 is an equidigital number, since it uses as much as digits as its factorization.

354861049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 354861049 is about 18837.7559438485. The cubic root of 354861049 is about 707.9774808769.

The spelling of 354861049 in words is "three hundred fifty-four million, eight hundred sixty-one thousand, forty-nine".