1271101453 has 2 divisors, whose sum is σ = 1271101454. Its totient is φ = 1271101452.

The previous prime is 1271101439. The next prime is 1271101459. The reversal of 1271101453 is 3541011721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1268285769 + 2815684 = 35613^2 + 1678^2 .

It is a cyclic number.

It is not a de Polignac number, because 1271101453 - 2²⁵ = 1237547021 is a prime.

It is a super-2 number, since 2×1271101453² = 3231397807637422418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1271101459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635550726 + 635550727.

It is an arithmetic number, because the mean of its divisors is an integer number (635550727).

Almost surely, 2^1271101453 is an apocalyptic number.

It is an amenable number.

1271101453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1271101453 is an equidigital number, since it uses as much as digits as its factorization.

1271101453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 1271101453 is about 35652.5097714032. The cubic root of 1271101453 is about 1083.2451129317.

The spelling of 1271101453 in words is "one billion, two hundred seventy-one million, one hundred one thousand, four hundred fifty-three".