1243151 has 16 divisors (see below), whose sum is σ = 1612800. Its totient is φ = 930528.

The previous prime is 1243147. The next prime is 1243157. The reversal of 1243151 is 1513421.

It is a cyclic number.

It is not a de Polignac number, because 1243151 - 2² = 1243147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243157) 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 15 ways as a sum of consecutive naturals, for example, 1370 + ... + 2088.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^1243151 is an apocalyptic number.

1243151 is a deficient number, since it is larger than the sum of its proper divisors (369649).

1243151 is a wasteful number, since it uses less digits than its factorization.

1243151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758.

The product of its digits is 120, while the sum is 17.

The square root of 1243151 is about 1114.9668156497. The cubic root of 1243151 is about 107.5246310965.

Adding to 1243151 its reverse (1513421), we get a palindrome (2756572).

The spelling of 1243151 in words is "one million, two hundred forty-three thousand, one hundred fifty-one".