354538861 has 2 divisors, whose sum is σ = 354538862. Its totient is φ = 354538860.

The previous prime is 354538853. The next prime is 354538871. The reversal of 354538861 is 168835453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227074761 + 127464100 = 15069^2 + 11290^2 .

It is an emirp because it is prime and its reverse (168835453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 354538861 - 2³ = 354538853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354538801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177269430 + 177269431.

It is an arithmetic number, because the mean of its divisors is an integer number (177269431).

Almost surely, 2^354538861 is an apocalyptic number.

It is an amenable number.

354538861 is a deficient number, since it is larger than the sum of its proper divisors (1).

354538861 is an equidigital number, since it uses as much as digits as its factorization.

354538861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 43.

The square root of 354538861 is about 18829.2023463555. The cubic root of 354538861 is about 707.7631519940.

The spelling of 354538861 in words is "three hundred fifty-four million, five hundred thirty-eight thousand, eight hundred sixty-one".