2198696137 has 4 divisors (see below), whose sum is σ = 2398577616. Its totient is φ = 1998814660.

The previous prime is 2198696119. The next prime is 2198696141. The reversal of 2198696137 is 7316968912.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2198696137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2198696117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99940723 + ... + 99940744.

It is an arithmetic number, because the mean of its divisors is an integer number (599644404).

Almost surely, 2^2198696137 is an apocalyptic number.

It is an amenable number.

2198696137 is a deficient number, since it is larger than the sum of its proper divisors (199881479).

2198696137 is a wasteful number, since it uses less digits than its factorization.

2198696137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199881478.

The product of its digits is 979776, while the sum is 52.

The square root of 2198696137 is about 46890.2563119461. The cubic root of 2198696137 is about 1300.3344577319.

The spelling of 2198696137 in words is "two billion, one hundred ninety-eight million, six hundred ninety-six thousand, one hundred thirty-seven".