1227253949 has 2 divisors, whose sum is σ = 1227253950. Its totient is φ = 1227253948.

The previous prime is 1227253931. The next prime is 1227253969. The reversal of 1227253949 is 9493527221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1121781049 + 105472900 = 33493^2 + 10270^2 .

It is a cyclic number.

It is not a de Polignac number, because 1227253949 - 2²⁸ = 958818493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1227253969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613626974 + 613626975.

It is an arithmetic number, because the mean of its divisors is an integer number (613626975).

Almost surely, 2^1227253949 is an apocalyptic number.

It is an amenable number.

1227253949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1227253949 is an equidigital number, since it uses as much as digits as its factorization.

1227253949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 44.

The square root of 1227253949 is about 35032.1844737093. The cubic root of 1227253949 is about 1070.6433226280.

The spelling of 1227253949 in words is "one billion, two hundred twenty-seven million, two hundred fifty-three thousand, nine hundred forty-nine".