1209110953 has 2 divisors, whose sum is σ = 1209110954. Its totient is φ = 1209110952.

The previous prime is 1209110911. The next prime is 1209110963. The reversal of 1209110953 is 3590119021.

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., 667292224 + 541818729 = 25832^2 + 23277^2 .

It is a cyclic number.

It is not a de Polignac number, because 1209110953 - 2²⁵ = 1175556521 is a prime.

It is not a weakly prime, because it can be changed into another prime (1209110963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604555476 + 604555477.

It is an arithmetic number, because the mean of its divisors is an integer number (604555477).

Almost surely, 2^1209110953 is an apocalyptic number.

It is an amenable number.

1209110953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1209110953 is an equidigital number, since it uses as much as digits as its factorization.

1209110953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 31.

The square root of 1209110953 is about 34772.2727614978. The cubic root of 1209110953 is about 1065.3411892203.

Adding to 1209110953 its reverse (3590119021), we get a palindrome (4799229974).

The spelling of 1209110953 in words is "one billion, two hundred nine million, one hundred ten thousand, nine hundred fifty-three".