357450421 has 2 divisors, whose sum is σ = 357450422. Its totient is φ = 357450420.

The previous prime is 357450407. The next prime is 357450461. The reversal of 357450421 is 124054753.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 356794321 + 656100 = 18889^2 + 810^2 .

It is a cyclic number.

It is not a de Polignac number, because 357450421 - 2¹⁹ = 356926133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (357450461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 178725210 + 178725211.

It is an arithmetic number, because the mean of its divisors is an integer number (178725211).

Almost surely, 2^357450421 is an apocalyptic number.

It is an amenable number.

357450421 is a deficient number, since it is larger than the sum of its proper divisors (1).

357450421 is an equidigital number, since it uses as much as digits as its factorization.

357450421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 357450421 is about 18906.3592740644. The cubic root of 357450421 is about 709.6953139541.

The spelling of 357450421 in words is "three hundred fifty-seven million, four hundred fifty thousand, four hundred twenty-one".