2113397149 has 2 divisors, whose sum is σ = 2113397150. Its totient is φ = 2113397148.

The previous prime is 2113397129. The next prime is 2113397173. The reversal of 2113397149 is 9417933112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1756867225 + 356529924 = 41915^2 + 18882^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113397149 - 2¹¹ = 2113395101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113397119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056698574 + 1056698575.

It is an arithmetic number, because the mean of its divisors is an integer number (1056698575).

Almost surely, 2^2113397149 is an apocalyptic number.

It is an amenable number.

2113397149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113397149 is an equidigital number, since it uses as much as digits as its factorization.

2113397149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 40.

The square root of 2113397149 is about 45971.6994356310. The cubic root of 2113397149 is about 1283.2965865155.

The spelling of 2113397149 in words is "two billion, one hundred thirteen million, three hundred ninety-seven thousand, one hundred forty-nine".