1142313 has 8 divisors (see below), whose sum is σ = 1528128. Its totient is φ = 759024.

The previous prime is 1142311. The next prime is 1142321. The reversal of 1142313 is 3132411.

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

It is not a de Polignac number, because 1142313 - 2¹ = 1142311 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1142292 and 1142301.

It is not an unprimeable number, because it can be changed into a prime (1142311) 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, 1131 + ... + 1887.

It is an arithmetic number, because the mean of its divisors is an integer number (191016).

2^1142313 is an apocalyptic number.

It is an amenable number.

1142313 is a deficient number, since it is larger than the sum of its proper divisors (385815).

1142313 is an equidigital number, since it uses as much as digits as its factorization.

1142313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263.

The product of its digits is 72, while the sum is 15.

The square root of 1142313 is about 1068.7904378315. The cubic root of 1142313 is about 104.5349958719.

Adding to 1142313 its reverse (3132411), we get a palindrome (4274724).

It can be divided in two parts, 11 and 42313, that added together give a palindrome (42324).

The spelling of 1142313 in words is "one million, one hundred forty-two thousand, three hundred thirteen".