1293226049 has 2 divisors, whose sum is σ = 1293226050. Its totient is φ = 1293226048.

The previous prime is 1293225979. The next prime is 1293226063. The reversal of 1293226049 is 9406223921.

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., 1073741824 + 219484225 = 32768^2 + 14815^2 .

It is a cyclic number.

It is not a de Polignac number, because 1293226049 - 2²⁰ = 1292177473 is a prime.

It is a super-2 number, since 2×1293226049² = 3344867227624300802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1293226069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646613024 + 646613025.

It is an arithmetic number, because the mean of its divisors is an integer number (646613025).

Almost surely, 2^1293226049 is an apocalyptic number.

It is an amenable number.

1293226049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1293226049 is an equidigital number, since it uses as much as digits as its factorization.

1293226049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 1293226049 is about 35961.4522648905. The cubic root of 1293226049 is about 1089.4939291466.

The spelling of 1293226049 in words is "one billion, two hundred ninety-three million, two hundred twenty-six thousand, forty-nine".