1272262423 has 2 divisors, whose sum is σ = 1272262424. Its totient is φ = 1272262422.

The previous prime is 1272262391. The next prime is 1272262471. The reversal of 1272262423 is 3242622721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1272262423 - 2⁵ = 1272262391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1272262483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636131211 + 636131212.

It is an arithmetic number, because the mean of its divisors is an integer number (636131212).

Almost surely, 2^1272262423 is an apocalyptic number.

1272262423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1272262423 is an equidigital number, since it uses as much as digits as its factorization.

1272262423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 31.

The square root of 1272262423 is about 35668.7877982978. The cubic root of 1272262423 is about 1083.5748092451.

The spelling of 1272262423 in words is "one billion, two hundred seventy-two million, two hundred sixty-two thousand, four hundred twenty-three".