350146021 has 2 divisors, whose sum is σ = 350146022. Its totient is φ = 350146020.

The previous prime is 350146019. The next prime is 350146057. The reversal of 350146021 is 120641053.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349316100 + 829921 = 18690^2 + 911^2 .

It is a cyclic number.

It is not a de Polignac number, because 350146021 - 2¹ = 350146019 is a prime.

Together with 350146019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 350145983 and 350146001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (350146921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175073010 + 175073011.

It is an arithmetic number, because the mean of its divisors is an integer number (175073011).

Almost surely, 2^350146021 is an apocalyptic number.

It is an amenable number.

350146021 is a deficient number, since it is larger than the sum of its proper divisors (1).

350146021 is an equidigital number, since it uses as much as digits as its factorization.

350146021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 350146021 is about 18712.1891022937. The cubic root of 350146021 is about 704.8278646858.

Adding to 350146021 its reverse (120641053), we get a palindrome (470787074).

The spelling of 350146021 in words is "three hundred fifty million, one hundred forty-six thousand, twenty-one".