1272261 has 8 divisors (see below), whose sum is σ = 1703584. Its totient is φ = 844560.

The previous prime is 1272253. The next prime is 1272269. The reversal of 1272261 is 1622721.

It is an interprime number because it is at equal distance from previous prime (1272253) and next prime (1272269).

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

It is not a de Polignac number, because 1272261 - 2³ = 1272253 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66 + ... + 1596.

It is an arithmetic number, because the mean of its divisors is an integer number (212948).

2^1272261 is an apocalyptic number.

It is an amenable number.

1272261 is a deficient number, since it is larger than the sum of its proper divisors (431323).

1272261 is a wasteful number, since it uses less digits than its factorization.

1272261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811.

The product of its digits is 336, while the sum is 21.

The square root of 1272261 is about 1127.9454774057. The cubic root of 1272261 is about 108.3574405259.

Adding to 1272261 its reverse (1622721), we get a palindrome (2894982).

The spelling of 1272261 in words is "one million, two hundred seventy-two thousand, two hundred sixty-one".