1143625079 has 2 divisors, whose sum is σ = 1143625080. Its totient is φ = 1143625078.

The previous prime is 1143625073. The next prime is 1143625097. The reversal of 1143625079 is 9705263411.

Together with next prime (1143625097) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143625079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1143625073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571812539 + 571812540.

It is an arithmetic number, because the mean of its divisors is an integer number (571812540).

Almost surely, 2^1143625079 is an apocalyptic number.

1143625079 is a deficient number, since it is larger than the sum of its proper divisors (1).

1143625079 is an equidigital number, since it uses as much as digits as its factorization.

1143625079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 1143625079 is about 33817.5262105317. The cubic root of 1143625079 is about 1045.7500408106.

The spelling of 1143625079 in words is "one billion, one hundred forty-three million, six hundred twenty-five thousand, seventy-nine".