1242371 has 8 divisors (see below), whose sum is σ = 1347024. Its totient is φ = 1139040.

The previous prime is 1242361. The next prime is 1242379. The reversal of 1242371 is 1732421.

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 1242371 - 2¹⁰ = 1241347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242379) 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, 2741 + ... + 3161.

It is an arithmetic number, because the mean of its divisors is an integer number (168378).

2^1242371 is an apocalyptic number.

1242371 is a deficient number, since it is larger than the sum of its proper divisors (104653).

1242371 is a wasteful number, since it uses less digits than its factorization.

1242371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661.

The product of its digits is 336, while the sum is 20.

The square root of 1242371 is about 1114.6169745702. The cubic root of 1242371 is about 107.5021380501.

Adding to 1242371 its reverse (1732421), we get a palindrome (2974792).

The spelling of 1242371 in words is "one million, two hundred forty-two thousand, three hundred seventy-one".