357421093 has 2 divisors, whose sum is σ = 357421094. Its totient is φ = 357421092.

The previous prime is 357421091. The next prime is 357421111. The reversal of 357421093 is 390124753.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349764804 + 7656289 = 18702^2 + 2767^2 .

It is an emirp because it is prime and its reverse (390124753) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 357421093 - 2¹ = 357421091 is a prime.

Together with 357421091, it forms a pair of twin primes.

It is equal to p_19180429 and since 357421093 and 19180429 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (357421091) 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, 178710546 + 178710547.

It is an arithmetic number, because the mean of its divisors is an integer number (178710547).

Almost surely, 2^357421093 is an apocalyptic number.

It is an amenable number.

357421093 is a deficient number, since it is larger than the sum of its proper divisors (1).

357421093 is an equidigital number, since it uses as much as digits as its factorization.

357421093 is an odious number, because the sum of its binary digits is odd.

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

The square root of 357421093 is about 18905.5836461084. The cubic root of 357421093 is about 709.6759037905.

The spelling of 357421093 in words is "three hundred fifty-seven million, four hundred twenty-one thousand, ninety-three".