1145215 has 8 divisors (see below), whose sum is σ = 1381680. Its totient is φ = 911232.

The previous prime is 1145213. The next prime is 1145227. The reversal of 1145215 is 5125411.

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

It is a cyclic number.

It is not a de Polignac number, because 1145215 - 2¹ = 1145213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1145192 and 1145201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1145213) 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, 631 + ... + 1639.

It is an arithmetic number, because the mean of its divisors is an integer number (172710).

2^1145215 is an apocalyptic number.

1145215 is a deficient number, since it is larger than the sum of its proper divisors (236465).

1145215 is a wasteful number, since it uses less digits than its factorization.

1145215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1241.

The product of its digits is 200, while the sum is 19.

The square root of 1145215 is about 1070.1471861384. The cubic root of 1145215 is about 104.6234433255.

It can be divided in two parts, 114 and 5215, that added together give a square (5329 = 73²).

The spelling of 1145215 in words is "one million, one hundred forty-five thousand, two hundred fifteen".