1021454143 has 2 divisors, whose sum is σ = 1021454144. Its totient is φ = 1021454142.

The previous prime is 1021454113. The next prime is 1021454167. The reversal of 1021454143 is 3414541201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021454143 - 2²⁵ = 987899711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021454113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510727071 + 510727072.

It is an arithmetic number, because the mean of its divisors is an integer number (510727072).

Almost surely, 2^1021454143 is an apocalyptic number.

1021454143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021454143 is an equidigital number, since it uses as much as digits as its factorization.

1021454143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1021454143 is about 31960.1962290597. The cubic root of 1021454143 is about 1007.1008397291.

Adding to 1021454143 its reverse (3414541201), we get a palindrome (4435995344).

The spelling of 1021454143 in words is "one billion, twenty-one million, four hundred fifty-four thousand, one hundred forty-three".