1023041639 has 2 divisors, whose sum is σ = 1023041640. Its totient is φ = 1023041638.

The previous prime is 1023041597. The next prime is 1023041683. The reversal of 1023041639 is 9361403201.

It is a weak prime.

It is an emirp because it is prime and its reverse (9361403201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1023041639 - 2²⁴ = 1006264423 is a prime.

It is a super-2 number, since 2×1023041639² = 2093228390255612642, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1023041039) 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, 511520819 + 511520820.

It is an arithmetic number, because the mean of its divisors is an integer number (511520820).

Almost surely, 2^1023041639 is an apocalyptic number.

1023041639 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023041639 is an equidigital number, since it uses as much as digits as its factorization.

1023041639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1023041639 is about 31985.0221041037. The cubic root of 1023041639 is about 1007.6222992700.

The spelling of 1023041639 in words is "one billion, twenty-three million, forty-one thousand, six hundred thirty-nine".