355641389 has 2 divisors, whose sum is σ = 355641390. Its totient is φ = 355641388.

The previous prime is 355641383. The next prime is 355641443. The reversal of 355641389 is 983146553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214388164 + 141253225 = 14642^2 + 11885^2 .

It is a cyclic number.

It is not a de Polignac number, because 355641389 - 2²⁸ = 87205933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355641383) 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, 177820694 + 177820695.

It is an arithmetic number, because the mean of its divisors is an integer number (177820695).

Almost surely, 2^355641389 is an apocalyptic number.

It is an amenable number.

355641389 is a deficient number, since it is larger than the sum of its proper divisors (1).

355641389 is an equidigital number, since it uses as much as digits as its factorization.

355641389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 44.

The square root of 355641389 is about 18858.4566971956. The cubic root of 355641389 is about 708.4960488133.

The spelling of 355641389 in words is "three hundred fifty-five million, six hundred forty-one thousand, three hundred eighty-nine".