1242185 has 8 divisors (see below), whose sum is σ = 1703616. Its totient is φ = 851760.

The previous prime is 1242181. The next prime is 1242191. The reversal of 1242185 is 5812421.

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

It is not a de Polignac number, because 1242185 - 2² = 1242181 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1242185.

It is not an unprimeable number, because it can be changed into a prime (1242181) 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, 17711 + ... + 17780.

It is an arithmetic number, because the mean of its divisors is an integer number (212952).

2^1242185 is an apocalyptic number.

It is an amenable number.

1242185 is a deficient number, since it is larger than the sum of its proper divisors (461431).

1242185 is an equidigital number, since it uses as much as digits as its factorization.

1242185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35503.

The product of its digits is 640, while the sum is 23.

The square root of 1242185 is about 1114.5335347131. The cubic root of 1242185 is about 107.4967729336.

The spelling of 1242185 in words is "one million, two hundred forty-two thousand, one hundred eighty-five".