1142131 has 2 divisors, whose sum is σ = 1142132. Its totient is φ = 1142130.

The previous prime is 1142129. The next prime is 1142159. The reversal of 1142131 is 1312411.

It is a weak prime.

It is an emirp because it is prime and its reverse (1312411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1142131 - 2¹ = 1142129 is a prime.

It is a super-2 number, since 2×1142131² = 2608926442322, which contains 22 as substring.

Together with 1142129, it forms a pair of twin primes.

1142131 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1142161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571065 + 571066.

It is an arithmetic number, because the mean of its divisors is an integer number (571066).

2^1142131 is an apocalyptic number.

1142131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142131 is an equidigital number, since it uses as much as digits as its factorization.

1142131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24, while the sum is 13.

The square root of 1142131 is about 1068.7052914625. The cubic root of 1142131 is about 104.5294438677.

Adding to 1142131 its reverse (1312411), we get a palindrome (2454542).

The spelling of 1142131 in words is "one million, one hundred forty-two thousand, one hundred thirty-one".