1020571029 has 32 divisors (see below), whose sum is σ = 1531405440. Its totient is φ = 671677056.

The previous prime is 1020570977. The next prime is 1020571031. The reversal of 1020571029 is 9201750201.

It is not a de Polignac number, because 1020571029 - 2¹⁷ = 1020439957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1020570993 and 1020571011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020571229) 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 in 31 ways as a sum of consecutive naturals, for example, 1319887 + ... + 1320659.

It is an arithmetic number, because the mean of its divisors is an integer number (47856420).

Almost surely, 2^1020571029 is an apocalyptic number.

It is an amenable number.

1020571029 is a deficient number, since it is larger than the sum of its proper divisors (510834411).

1020571029 is a wasteful number, since it uses less digits than its factorization.

1020571029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346 (or 1340 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1020571029 is about 31946.3774002625. The cubic root of 1020571029 is about 1006.8105211701.

The spelling of 1020571029 in words is "one billion, twenty million, five hundred seventy-one thousand, twenty-nine".