1020919629 has 4 divisors (see below), whose sum is σ = 1361226176. Its totient is φ = 680613084.

The previous prime is 1020919619. The next prime is 1020919633. The reversal of 1020919629 is 9269190201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1020919629 - 2¹¹ = 1020917581 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 (1020919619) 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, 170153269 + ... + 170153274.

It is an arithmetic number, because the mean of its divisors is an integer number (340306544).

Almost surely, 2^1020919629 is an apocalyptic number.

It is an amenable number.

1020919629 is a deficient number, since it is larger than the sum of its proper divisors (340306547).

1020919629 is an equidigital number, since it uses as much as digits as its factorization.

1020919629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340306546.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 1020919629 is about 31951.8329521172. The cubic root of 1020919629 is about 1006.9251413792.

The spelling of 1020919629 in words is "one billion, twenty million, nine hundred nineteen thousand, six hundred twenty-nine".