2198261237 has 2 divisors, whose sum is σ = 2198261238. Its totient is φ = 2198261236.

The previous prime is 2198261201. The next prime is 2198261267. The reversal of 2198261237 is 7321628912.

2198261237 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2003547121 + 194714116 = 44761^2 + 13954^2 .

It is a cyclic number.

It is not a de Polignac number, because 2198261237 - 2¹² = 2198257141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2198261194 and 2198261203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2198261267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099130618 + 1099130619.

It is an arithmetic number, because the mean of its divisors is an integer number (1099130619).

Almost surely, 2^2198261237 is an apocalyptic number.

It is an amenable number.

2198261237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2198261237 is an equidigital number, since it uses as much as digits as its factorization.

2198261237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 2198261237 is about 46885.6186586036. The cubic root of 2198261237 is about 1300.2487171065.

The spelling of 2198261237 in words is "two billion, one hundred ninety-eight million, two hundred sixty-one thousand, two hundred thirty-seven".