1275751 has 2 divisors, whose sum is σ = 1275752. Its totient is φ = 1275750.

The previous prime is 1275749. The next prime is 1275779. The reversal of 1275751 is 1575721.

It is an a-pointer prime, because the next prime (1275779) can be obtained adding 1275751 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1275751 - 2¹ = 1275749 is a prime.

It is a super-2 number, since 2×1275751² = 3255081228002, which contains 22 as substring.

Together with 1275749, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1275851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637875 + 637876.

It is an arithmetic number, because the mean of its divisors is an integer number (637876).

2^1275751 is an apocalyptic number.

1275751 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275751 is an equidigital number, since it uses as much as digits as its factorization.

1275751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2450, while the sum is 28.

The square root of 1275751 is about 1129.4914784982. The cubic root of 1275751 is about 108.4564302258.

The spelling of 1275751 in words is "one million, two hundred seventy-five thousand, seven hundred fifty-one".