1020729319 has 2 divisors, whose sum is σ = 1020729320. Its totient is φ = 1020729318.

The previous prime is 1020729247. The next prime is 1020729371. The reversal of 1020729319 is 9139270201.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9139270201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1020729319 - 2²³ = 1012340711 is a prime.

It is a super-2 number, since 2×1020729319² = 2083776685332407522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020729019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510364659 + 510364660.

It is an arithmetic number, because the mean of its divisors is an integer number (510364660).

Almost surely, 2^1020729319 is an apocalyptic number.

1020729319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020729319 is an equidigital number, since it uses as much as digits as its factorization.

1020729319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 1020729319 is about 31948.8547369072. The cubic root of 1020729319 is about 1006.8625703969.

The spelling of 1020729319 in words is "one billion, twenty million, seven hundred twenty-nine thousand, three hundred nineteen".