1143415 has 24 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 721728.

The previous prime is 1143407. The next prime is 1143433. The reversal of 1143415 is 5143411.

It is not a de Polignac number, because 1143415 - 2³ = 1143407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143392 and 1143401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3006 + ... + 3364.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2^1143415 is an apocalyptic number.

1143415 is a deficient number, since it is larger than the sum of its proper divisors (580265).

1143415 is a wasteful number, since it uses less digits than its factorization.

1143415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 384 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 1143415 is about 1069.3058496052. The cubic root of 1143415 is about 104.5686003630.

Adding to 1143415 its reverse (5143411), we get a palindrome (6286826).

It can be divided in two parts, 11434 and 15, that added together give a square (11449 = 107²).

The spelling of 1143415 in words is "one million, one hundred forty-three thousand, four hundred fifteen".