1392143 has 2 divisors, whose sum is σ = 1392144. Its totient is φ = 1392142.

The previous prime is 1392133. The next prime is 1392163. The reversal of 1392143 is 3412931.

It is a weak prime.

It is an emirp because it is prime and its reverse (3412931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1392143 - 2¹⁰ = 1391119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1392103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696071 + 696072.

It is an arithmetic number, because the mean of its divisors is an integer number (696072).

2^1392143 is an apocalyptic number.

1392143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392143 is an equidigital number, since it uses as much as digits as its factorization.

1392143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 1392143 is about 1179.8910966695. The cubic root of 1392143 is about 111.6592267512.

The spelling of 1392143 in words is "one million, three hundred ninety-two thousand, one hundred forty-three".