1275951 has 4 divisors (see below), whose sum is σ = 1701272. Its totient is φ = 850632.

The previous prime is 1275947. The next prime is 1275973. The reversal of 1275951 is 1595721.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1275951 - 2² = 1275947 is a prime.

It is a D-number.

It is a Duffinian number.

1275951 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212656 + ... + 212661.

It is an arithmetic number, because the mean of its divisors is an integer number (425318).

2^1275951 is an apocalyptic number.

1275951 is a deficient number, since it is larger than the sum of its proper divisors (425321).

1275951 is an equidigital number, since it uses as much as digits as its factorization.

1275951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425320.

The product of its digits is 3150, while the sum is 30.

The square root of 1275951 is about 1129.5800104464. The cubic root of 1275951 is about 108.4620975158.

The spelling of 1275951 in words is "one million, two hundred seventy-five thousand, nine hundred fifty-one".