1275026449 has 8 divisors (see below), whose sum is σ = 1294926912. Its totient is φ = 1255180080.

The previous prime is 1275026437. The next prime is 1275026461. The reversal of 1275026449 is 9446205721.

It is an interprime number because it is at equal distance from previous prime (1275026437) and next prime (1275026461).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1275026449 - 2⁹ = 1275025937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1275026419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35347 + ... + 61639.

It is an arithmetic number, because the mean of its divisors is an integer number (161865864).

Almost surely, 2^1275026449 is an apocalyptic number.

It is an amenable number.

1275026449 is a deficient number, since it is larger than the sum of its proper divisors (19900463).

1275026449 is an equidigital number, since it uses as much as digits as its factorization.

1275026449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27047.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 1275026449 is about 35707.5125008730. The cubic root of 1275026449 is about 1084.3589406154.

The spelling of 1275026449 in words is "one billion, two hundred seventy-five million, twenty-six thousand, four hundred forty-nine".