1142115 has 16 divisors (see below), whose sum is σ = 1968288. Its totient is φ = 562176.

The previous prime is 1142083. The next prime is 1142129. The reversal of 1142115 is 5112411.

It is a happy number.

It is not a de Polignac number, because 1142115 - 2⁵ = 1142083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

1142115 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1142094 and 1142103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2734 + ... + 3123.

It is an arithmetic number, because the mean of its divisors is an integer number (123018).

2^1142115 is an apocalyptic number.

1142115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1142115 is a deficient number, since it is larger than the sum of its proper divisors (826173).

1142115 is a wasteful number, since it uses less digits than its factorization.

1142115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5878.

The product of its digits is 40, while the sum is 15.

The square root of 1142115 is about 1068.6978057430. The cubic root of 1142115 is about 104.5289557512.

Adding to 1142115 its reverse (5112411), we get a palindrome (6254526).

The spelling of 1142115 in words is "one million, one hundred forty-two thousand, one hundred fifteen".