354654109 has 2 divisors, whose sum is σ = 354654110. Its totient is φ = 354654108.

The previous prime is 354654107. The next prime is 354654143. The reversal of 354654109 is 901456453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 351450009 + 3204100 = 18747^2 + 1790^2 .

It is a cyclic number.

It is not a de Polignac number, because 354654109 - 2¹ = 354654107 is a prime.

Together with 354654107, 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 (354654107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177327054 + 177327055.

It is an arithmetic number, because the mean of its divisors is an integer number (177327055).

Almost surely, 2^354654109 is an apocalyptic number.

It is an amenable number.

354654109 is a deficient number, since it is larger than the sum of its proper divisors (1).

354654109 is an equidigital number, since it uses as much as digits as its factorization.

354654109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 354654109 is about 18832.2624503802. The cubic root of 354654109 is about 707.8398332458.

The spelling of 354654109 in words is "three hundred fifty-four million, six hundred fifty-four thousand, one hundred nine".