351138013 has 2 divisors, whose sum is σ = 351138014. Its totient is φ = 351138012.

The previous prime is 351138001. The next prime is 351138037. The reversal of 351138013 is 310831153.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329858244 + 21279769 = 18162^2 + 4613^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-351138013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351138113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175569006 + 175569007.

It is an arithmetic number, because the mean of its divisors is an integer number (175569007).

Almost surely, 2^351138013 is an apocalyptic number.

It is an amenable number.

351138013 is a deficient number, since it is larger than the sum of its proper divisors (1).

351138013 is an equidigital number, since it uses as much as digits as its factorization.

351138013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 351138013 is about 18738.6769276809. The cubic root of 351138013 is about 705.4928485472.

Adding to 351138013 its reverse (310831153), we get a palindrome (661969166).

The spelling of 351138013 in words is "three hundred fifty-one million, one hundred thirty-eight thousand, thirteen".