1029128545 has 32 divisors (see below), whose sum is σ = 1315731456. Its totient is φ = 771379200.

The previous prime is 1029128489. The next prime is 1029128561. The reversal of 1029128545 is 5458219201.

1029128545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1029128545 - 2¹³ = 1029120353 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1783297 + ... + 1783873.

It is an arithmetic number, because the mean of its divisors is an integer number (41116608).

Almost surely, 2^1029128545 is an apocalyptic number.

It is an amenable number.

1029128545 is a deficient number, since it is larger than the sum of its proper divisors (286602911).

1029128545 is a wasteful number, since it uses less digits than its factorization.

1029128545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 1029128545 is about 32080.0334320275. The cubic root of 1029128545 is about 1009.6167369140.

The spelling of 1029128545 in words is "one billion, twenty-nine million, one hundred twenty-eight thousand, five hundred forty-five".