1242175 has 12 divisors (see below), whose sum is σ = 1680696. Its totient is φ = 903200.

The previous prime is 1242169. The next prime is 1242181. The reversal of 1242175 is 5712421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1242169) and next prime (1242181).

It is not a de Polignac number, because 1242175 - 2³ = 1242167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1984 + ... + 2533.

It is an arithmetic number, because the mean of its divisors is an integer number (140058).

2^1242175 is an apocalyptic number.

1242175 is a deficient number, since it is larger than the sum of its proper divisors (438521).

1242175 is a wasteful number, since it uses less digits than its factorization.

1242175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4538 (or 4533 counting only the distinct ones).

The product of its digits is 560, while the sum is 22.

The square root of 1242175 is about 1114.5290485223. The cubic root of 1242175 is about 107.4964844713.

Adding to 1242175 its reverse (5712421), we get a palindrome (6954596).

The spelling of 1242175 in words is "one million, two hundred forty-two thousand, one hundred seventy-five".