1025144117 has 2 divisors, whose sum is σ = 1025144118. Its totient is φ = 1025144116.

The previous prime is 1025144111. The next prime is 1025144137. The reversal of 1025144117 is 7114415201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 878588881 + 146555236 = 29641^2 + 12106^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025144117 - 2²⁴ = 1008366901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025144111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512572058 + 512572059.

It is an arithmetic number, because the mean of its divisors is an integer number (512572059).

Almost surely, 2^1025144117 is an apocalyptic number.

It is an amenable number.

1025144117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025144117 is an equidigital number, since it uses as much as digits as its factorization.

1025144117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 1025144117 is about 32017.8718374598. The cubic root of 1025144117 is about 1008.3120900624.

Adding to 1025144117 its reverse (7114415201), we get a palindrome (8139559318).

The spelling of 1025144117 in words is "one billion, twenty-five million, one hundred forty-four thousand, one hundred seventeen".