357342109 has 2 divisors, whose sum is σ = 357342110. Its totient is φ = 357342108.

The previous prime is 357342107. The next prime is 357342131. The reversal of 357342109 is 901243753.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222666084 + 134676025 = 14922^2 + 11605^2 .

It is a cyclic number.

It is not a de Polignac number, because 357342109 - 2¹ = 357342107 is a prime.

Together with 357342107, 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 (357342103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178671054 + 178671055.

It is an arithmetic number, because the mean of its divisors is an integer number (178671055).

Almost surely, 2^357342109 is an apocalyptic number.

It is an amenable number.

357342109 is a deficient number, since it is larger than the sum of its proper divisors (1).

357342109 is an equidigital number, since it uses as much as digits as its factorization.

357342109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 357342109 is about 18903.4946240107. The cubic root of 357342109 is about 709.6236244929.

The spelling of 357342109 in words is "three hundred fifty-seven million, three hundred forty-two thousand, one hundred nine".