1042215 has 8 divisors (see below), whose sum is σ = 1667568. Its totient is φ = 555840.

The previous prime is 1042211. The next prime is 1042241. The reversal of 1042215 is 5122401.

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

It is not a de Polignac number, because 1042215 - 2² = 1042211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 69481 = 1042215 / (1 + 0 + 4 + 2 + 2 + 1 + 5).

It is a junction number, because it is equal to n+sod(n) for n = 1042194 and 1042203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042211) 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, 34726 + ... + 34755.

It is an arithmetic number, because the mean of its divisors is an integer number (208446).

2^1042215 is an apocalyptic number.

1042215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1042215 is a deficient number, since it is larger than the sum of its proper divisors (625353).

1042215 is an equidigital number, since it uses as much as digits as its factorization.

1042215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69489.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 1042215 is about 1020.8893181927. The cubic root of 1042215 is about 101.3878172013.

Adding to 1042215 its reverse (5122401), we get a palindrome (6164616).

The spelling of 1042215 in words is "one million, forty-two thousand, two hundred fifteen".