5379129221 has 2 divisors, whose sum is σ = 5379129222. Its totient is φ = 5379129220.

The previous prime is 5379129211. The next prime is 5379129241. The reversal of 5379129221 is 1229219735.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5350922500 + 28206721 = 73150^2 + 5311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5379129221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5379129211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2689564610 + 2689564611.

It is an arithmetic number, because the mean of its divisors is an integer number (2689564611).

Almost surely, 2^5379129221 is an apocalyptic number.

It is an amenable number.

5379129221 is a deficient number, since it is larger than the sum of its proper divisors (1).

5379129221 is an equidigital number, since it uses as much as digits as its factorization.

5379129221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 41.

The square root of 5379129221 is about 73342.5471401151. The cubic root of 5379129221 is about 1752.1474829671.

The spelling of 5379129221 in words is "five billion, three hundred seventy-nine million, one hundred twenty-nine thousand, two hundred twenty-one".