1025144143 has 4 divisors (see below), whose sum is σ = 1025929800. Its totient is φ = 1024358488.

The previous prime is 1025144137. The next prime is 1025144147. The reversal of 1025144143 is 3414415201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3414415201 = 17 ⋅200847953.

It is a cyclic number.

It is not a de Polignac number, because 1025144143 - 2⁵ = 1025144111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025144147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 390868 + ... + 393481.

It is an arithmetic number, because the mean of its divisors is an integer number (256482450).

Almost surely, 2^1025144143 is an apocalyptic number.

1025144143 is a deficient number, since it is larger than the sum of its proper divisors (785657).

1025144143 is an equidigital number, since it uses as much as digits as its factorization.

1025144143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785656.

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

The square root of 1025144143 is about 32017.8722434830. The cubic root of 1025144143 is about 1008.3120985867.

Adding to 1025144143 its reverse (3414415201), we get a palindrome (4439559344).

The spelling of 1025144143 in words is "one billion, twenty-five million, one hundred forty-four thousand, one hundred forty-three".