1210632149 has 2 divisors, whose sum is σ = 1210632150. Its totient is φ = 1210632148.

The previous prime is 1210632131. The next prime is 1210632187. The reversal of 1210632149 is 9412360121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1195084900 + 15547249 = 34570^2 + 3943^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210632149 - 2⁸ = 1210631893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210632349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605316074 + 605316075.

It is an arithmetic number, because the mean of its divisors is an integer number (605316075).

Almost surely, 2^1210632149 is an apocalyptic number.

It is an amenable number.

1210632149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210632149 is an equidigital number, since it uses as much as digits as its factorization.

1210632149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1210632149 is about 34794.1395783830. The cubic root of 1210632149 is about 1065.7877745392.

The spelling of 1210632149 in words is "one billion, two hundred ten million, six hundred thirty-two thousand, one hundred forty-nine".