13498198501 has 2 divisors, whose sum is σ = 13498198502. Its totient is φ = 13498198500.

The previous prime is 13498198487. The next prime is 13498198561. The reversal of 13498198501 is 10589189431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11492054401 + 2006144100 = 107201^2 + 44790^2 .

It is a cyclic number.

It is not a de Polignac number, because 13498198501 - 2⁹ = 13498197989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13498198561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6749099250 + 6749099251.

It is an arithmetic number, because the mean of its divisors is an integer number (6749099251).

Almost surely, 2^13498198501 is an apocalyptic number.

It is an amenable number.

13498198501 is a deficient number, since it is larger than the sum of its proper divisors (1).

13498198501 is an equidigital number, since it uses as much as digits as its factorization.

13498198501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 49.

The spelling of 13498198501 in words is "thirteen billion, four hundred ninety-eight million, one hundred ninety-eight thousand, five hundred one".