3551438313 has 12 divisors (see below), whose sum is σ = 5133642228. Its totient is φ = 2365877760.

The previous prime is 3551438291. The next prime is 3551438323. The reversal of 3551438313 is 3138341553.

It can be written as a sum of positive squares in 2 ways, for example, as 1623525849 + 1927912464 = 40293^2 + 43908^2 .

It is not a de Polignac number, because 3551438313 - 2¹² = 3551434217 is a prime.

It is a super-2 number, since 2×3551438313² = 25225428182088571938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3551438323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132720 + ... + 157217.

It is an arithmetic number, because the mean of its divisors is an integer number (427803519).

Almost surely, 2^3551438313 is an apocalyptic number.

It is an amenable number.

3551438313 is a deficient number, since it is larger than the sum of its proper divisors (1582203915).

3551438313 is a wasteful number, since it uses less digits than its factorization.

3551438313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291304 (or 291301 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 3551438313 is about 59593.9452713109. The cubic root of 3551438313 is about 1525.6962959168.

Adding to 3551438313 its reverse (3138341553), we get a palindrome (6689779866).

The spelling of 3551438313 in words is "three billion, five hundred fifty-one million, four hundred thirty-eight thousand, three hundred thirteen".