13996212257 has 2 divisors, whose sum is σ = 13996212258. Its totient is φ = 13996212256.

The previous prime is 13996212239. The next prime is 13996212313. The reversal of 13996212257 is 75221269931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7312986256 + 6683226001 = 85516^2 + 81751^2 .

It is a cyclic number.

It is not a de Polignac number, because 13996212257 - 2²² = 13992017953 is a prime.

It is not a weakly prime, because it can be changed into another prime (13996212157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6998106128 + 6998106129.

It is an arithmetic number, because the mean of its divisors is an integer number (6998106129).

Almost surely, 2^13996212257 is an apocalyptic number.

It is an amenable number.

13996212257 is a deficient number, since it is larger than the sum of its proper divisors (1).

13996212257 is an equidigital number, since it uses as much as digits as its factorization.

13996212257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The spelling of 13996212257 in words is "thirteen billion, nine hundred ninety-six million, two hundred twelve thousand, two hundred fifty-seven".