2103636149 has 2 divisors, whose sum is σ = 2103636150. Its totient is φ = 2103636148.

The previous prime is 2103636131. The next prime is 2103636163. The reversal of 2103636149 is 9416363012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1433758225 + 669877924 = 37865^2 + 25882^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103636149 - 2¹⁶ = 2103570613 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103636169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051818074 + 1051818075.

It is an arithmetic number, because the mean of its divisors is an integer number (1051818075).

Almost surely, 2^2103636149 is an apocalyptic number.

It is an amenable number.

2103636149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103636149 is an equidigital number, since it uses as much as digits as its factorization.

2103636149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 2103636149 is about 45865.4134288573. The cubic root of 2103636149 is about 1281.3178462141.

The spelling of 2103636149 in words is "two billion, one hundred three million, six hundred thirty-six thousand, one hundred forty-nine".