1275126229 has 16 divisors (see below), whose sum is σ = 1391342400. Its totient is φ = 1161553536.

The previous prime is 1275126217. The next prime is 1275126241. The reversal of 1275126229 is 9226215721.

It is an interprime number because it is at equal distance from previous prime (1275126217) and next prime (1275126241).

It is not a de Polignac number, because 1275126229 - 2¹⁷ = 1274995157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275126269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 993222 + ... + 994504.

It is an arithmetic number, because the mean of its divisors is an integer number (86958900).

Almost surely, 2^1275126229 is an apocalyptic number.

It is an amenable number.

1275126229 is a deficient number, since it is larger than the sum of its proper divisors (116216171).

1275126229 is a wasteful number, since it uses less digits than its factorization.

1275126229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2244.

The product of its digits is 30240, while the sum is 37.

The square root of 1275126229 is about 35708.9096585152. The cubic root of 1275126229 is about 1084.3872261758.

The spelling of 1275126229 in words is "one billion, two hundred seventy-five million, one hundred twenty-six thousand, two hundred twenty-nine".