1142371 has 4 divisors (see below), whose sum is σ = 1148544. Its totient is φ = 1136200.

The previous prime is 1142363. The next prime is 1142389. The reversal of 1142371 is 1732411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1732411 = 53 ⋅32687.

It is a cyclic number.

It is not a de Polignac number, because 1142371 - 2³ = 1142363 is a prime.

It is a Duffinian number.

1142371 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1142311) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2800 + ... + 3181.

It is an arithmetic number, because the mean of its divisors is an integer number (287136).

2^1142371 is an apocalyptic number.

1142371 is a deficient number, since it is larger than the sum of its proper divisors (6173).

1142371 is an equidigital number, since it uses as much as digits as its factorization.

1142371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6172.

The product of its digits is 168, while the sum is 19.

The square root of 1142371 is about 1068.8175709634. The cubic root of 1142371 is about 104.5367650680.

Adding to 1142371 its reverse (1732411), we get a palindrome (2874782).

It can be divided in two parts, 114 and 2371, that added together give a triangular number (2485 = T₇₀).

The spelling of 1142371 in words is "one million, one hundred forty-two thousand, three hundred seventy-one".