355313421 has 12 divisors (see below), whose sum is σ = 525748860. Its totient is φ = 231097920.

The previous prime is 355313401. The next prime is 355313437. The reversal of 355313421 is 124313553.

It can be written as a sum of positive squares in 2 ways, for example, as 152250921 + 203062500 = 12339^2 + 14250^2 .

It is not a de Polignac number, because 355313421 - 2⁷ = 355313293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (355313401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 481086 + ... + 481823.

It is an arithmetic number, because the mean of its divisors is an integer number (43812405).

Almost surely, 2^355313421 is an apocalyptic number.

It is an amenable number.

355313421 is a deficient number, since it is larger than the sum of its proper divisors (170435439).

355313421 is a wasteful number, since it uses less digits than its factorization.

355313421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 962956 (or 962953 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 355313421 is about 18849.7591761805. The cubic root of 355313421 is about 708.2781931272.

Adding to 355313421 its reverse (124313553), we get a palindrome (479626974).

The spelling of 355313421 in words is "three hundred fifty-five million, three hundred thirteen thousand, four hundred twenty-one".