2198961357 has 4 divisors (see below), whose sum is σ = 2931948480. Its totient is φ = 1465974236.

The previous prime is 2198961293. The next prime is 2198961379. The reversal of 2198961357 is 7531698912.

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 not a de Polignac number, because 2198961357 - 2⁶ = 2198961293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198961157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366493557 + ... + 366493562.

It is an arithmetic number, because the mean of its divisors is an integer number (732987120).

Almost surely, 2^2198961357 is an apocalyptic number.

It is an amenable number.

2198961357 is a deficient number, since it is larger than the sum of its proper divisors (732987123).

2198961357 is an equidigital number, since it uses as much as digits as its factorization.

2198961357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732987122.

The product of its digits is 816480, while the sum is 51.

The square root of 2198961357 is about 46893.0843195455. The cubic root of 2198961357 is about 1300.3867403603.

The spelling of 2198961357 in words is "two billion, one hundred ninety-eight million, nine hundred sixty-one thousand, three hundred fifty-seven".