13749000197 has 2 divisors, whose sum is σ = 13749000198. Its totient is φ = 13749000196.

The previous prime is 13749000179. The next prime is 13749000233. The reversal of 13749000197 is 79100094731.

Together with previous prime (13749000179) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11355246721 + 2393753476 = 106561^2 + 48926^2 .

It is a cyclic number.

It is not a de Polignac number, because 13749000197 - 2¹² = 13748996101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13749005197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6874500098 + 6874500099.

It is an arithmetic number, because the mean of its divisors is an integer number (6874500099).

Almost surely, 2^13749000197 is an apocalyptic number.

It is an amenable number.

13749000197 is a deficient number, since it is larger than the sum of its proper divisors (1).

13749000197 is an equidigital number, since it uses as much as digits as its factorization.

13749000197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 41.

The spelling of 13749000197 in words is "thirteen billion, seven hundred forty-nine million, one hundred ninety-seven", and thus it is an aban number.