1071215 has 4 divisors (see below), whose sum is σ = 1285464. Its totient is φ = 856968.

The previous prime is 1071197. The next prime is 1071223. The reversal of 1071215 is 5121701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5121701 = 13 ⋅393977.

It is a cyclic number.

It is not a de Polignac number, because 1071215 - 2⁶ = 1071151 is a prime.

It is a super-2 number, since 2×1071215² = 2295003152450, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1071193 and 1071202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107117 + ... + 107126.

It is an arithmetic number, because the mean of its divisors is an integer number (321366).

2^1071215 is an apocalyptic number.

1071215 is a deficient number, since it is larger than the sum of its proper divisors (214249).

1071215 is an equidigital number, since it uses as much as digits as its factorization.

1071215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214248.

The product of its (nonzero) digits is 70, while the sum is 17.

The square root of 1071215 is about 1034.9951690709. The cubic root of 1071215 is about 102.3196113361.

Adding to 1071215 its reverse (5121701), we get a palindrome (6192916).

The spelling of 1071215 in words is "one million, seventy-one thousand, two hundred fifteen".