1142357 has 2 divisors, whose sum is σ = 1142358. Its totient is φ = 1142356.

The previous prime is 1142353. The next prime is 1142359. The reversal of 1142357 is 7532411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1012036 + 130321 = 1006^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142357 - 2² = 1142353 is a prime.

Together with 1142359, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142353) 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 as a sum of consecutive naturals, namely, 571178 + 571179.

It is an arithmetic number, because the mean of its divisors is an integer number (571179).

2^1142357 is an apocalyptic number.

It is an amenable number.

1142357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142357 is an equidigital number, since it uses as much as digits as its factorization.

1142357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 23.

The square root of 1142357 is about 1068.8110216498. The cubic root of 1142357 is about 104.5363380262.

Adding to 1142357 its reverse (7532411), we get a palindrome (8674768).

The spelling of 1142357 in words is "one million, one hundred forty-two thousand, three hundred fifty-seven".