1242095 has 16 divisors (see below), whose sum is σ = 1566432. Its totient is φ = 944640.
The previous prime is 1242089. The next prime is 1242097. The reversal of 1242095 is 5902421.
It is a de Polignac number, because none of the positive numbers 2k-1242095 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 1242095.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1242097) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14924 + ... + 15006.
It is an arithmetic number, because the mean of its divisors is an integer number (97902).
21242095 is an apocalyptic number.
1242095 is a deficient number, since it is larger than the sum of its proper divisors (324337).
1242095 is an equidigital number, since it uses as much as digits as its factorization.
1242095 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 202.
The product of its (nonzero) digits is 720, while the sum is 23.
The square root of 1242095 is about 1114.4931583460. The cubic root of 1242095 is about 107.4941767172.
The spelling of 1242095 in words is "one million, two hundred forty-two thousand, ninety-five".
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