1263423127 has 4 divisors (see below), whose sum is σ = 1297569736. Its totient is φ = 1229276520.

The previous prime is 1263423103. The next prime is 1263423149. The reversal of 1263423127 is 7213243621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7213243621 = 139 ⋅51893839.

It is a cyclic number.

It is not a de Polignac number, because 1263423127 - 2²³ = 1255034519 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 (1263423827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17073249 + ... + 17073322.

It is an arithmetic number, because the mean of its divisors is an integer number (324392434).

Almost surely, 2^1263423127 is an apocalyptic number.

1263423127 is a deficient number, since it is larger than the sum of its proper divisors (34146609).

1263423127 is an equidigital number, since it uses as much as digits as its factorization.

1263423127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34146608.

The product of its digits is 12096, while the sum is 31.

The square root of 1263423127 is about 35544.6638329862. The cubic root of 1263423127 is about 1081.0595246374.

Adding to 1263423127 its reverse (7213243621), we get a palindrome (8476666748).

The spelling of 1263423127 in words is "one billion, two hundred sixty-three million, four hundred twenty-three thousand, one hundred twenty-seven".