1142544493 has 2 divisors, whose sum is σ = 1142544494. Its totient is φ = 1142544492.

The previous prime is 1142544439. The next prime is 1142544503. The reversal of 1142544493 is 3944452411.

Together with previous prime (1142544439) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1107758089 + 34786404 = 33283^2 + 5898^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142544493 - 2¹⁷ = 1142413421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1142541493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571272246 + 571272247.

It is an arithmetic number, because the mean of its divisors is an integer number (571272247).

Almost surely, 2^1142544493 is an apocalyptic number.

It is an amenable number.

1142544493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142544493 is an equidigital number, since it uses as much as digits as its factorization.

1142544493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 1142544493 is about 33801.5457190940. The cubic root of 1142544493 is about 1045.4205683368.

The spelling of 1142544493 in words is "one billion, one hundred forty-two million, five hundred forty-four thousand, four hundred ninety-three".