1272141 has 24 divisors (see below), whose sum is σ = 2018016. Its totient is φ = 767520.

The previous prime is 1272133. The next prime is 1272151. The reversal of 1272141 is 1412721.

1272141 = 26² + 27² + ... + 156².

It is not a de Polignac number, because 1272141 - 2³ = 1272133 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272151) 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 23 ways as a sum of consecutive naturals, for example, 9646 + ... + 9776.

It is an arithmetic number, because the mean of its divisors is an integer number (84084).

2^1272141 is an apocalyptic number.

It is an amenable number.

1272141 is a deficient number, since it is larger than the sum of its proper divisors (745875).

1272141 is a wasteful number, since it uses less digits than its factorization.

1272141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 230 counting only the distinct ones).

The product of its digits is 112, while the sum is 18.

The square root of 1272141 is about 1127.8922820908. The cubic root of 1272141 is about 108.3540336512.

Adding to 1272141 its reverse (1412721), we get a palindrome (2684862).

The spelling of 1272141 in words is "one million, two hundred seventy-two thousand, one hundred forty-one".