1275491 has 8 divisors (see below), whose sum is σ = 1465440. Its totient is φ = 1087488.

The previous prime is 1275467. The next prime is 1275499. The reversal of 1275491 is 1945721.

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 1275491 - 2¹⁴ = 1259107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1275499) 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, 1445 + ... + 2153.

It is an arithmetic number, because the mean of its divisors is an integer number (183180).

2^1275491 is an apocalyptic number.

1275491 is a deficient number, since it is larger than the sum of its proper divisors (189949).

1275491 is an equidigital number, since it uses as much as digits as its factorization.

1275491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973.

The product of its digits is 2520, while the sum is 29.

The square root of 1275491 is about 1129.3763765902. The cubic root of 1275491 is about 108.4490618633.

The spelling of 1275491 in words is "one million, two hundred seventy-five thousand, four hundred ninety-one".