1457143 has 2 divisors, whose sum is σ = 1457144. Its totient is φ = 1457142.

The previous prime is 1457111. The next prime is 1457147. The reversal of 1457143 is 3417541.

It is a strong prime.

It is an emirp because it is prime and its reverse (3417541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1457143 - 2⁵ = 1457111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1457147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 728571 + 728572.

It is an arithmetic number, because the mean of its divisors is an integer number (728572).

2^1457143 is an apocalyptic number.

1457143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1457143 is an equidigital number, since it uses as much as digits as its factorization.

1457143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 25.

The square root of 1457143 is about 1207.1217834171. The cubic root of 1457143 is about 113.3706730098.

It can be divided in two parts, 1457 and 143, that added together give a square (1600 = 40²).

The spelling of 1457143 in words is "one million, four hundred fifty-seven thousand, one hundred forty-three".