1028572141 has 4 divisors (see below), whose sum is σ = 1043924032. Its totient is φ = 1013220252.

The previous prime is 1028572133. The next prime is 1028572151. The reversal of 1028572141 is 1412758201.

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 a cyclic number.

It is not a de Polignac number, because 1028572141 - 2³ = 1028572133 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 (1028572151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7675845 + ... + 7675978.

It is an arithmetic number, because the mean of its divisors is an integer number (260981008).

Almost surely, 2^1028572141 is an apocalyptic number.

It is an amenable number.

1028572141 is a deficient number, since it is larger than the sum of its proper divisors (15351891).

1028572141 is an equidigital number, since it uses as much as digits as its factorization.

1028572141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15351890.

The product of its (nonzero) digits is 4480, while the sum is 31.

The square root of 1028572141 is about 32071.3601364208. The cubic root of 1028572141 is about 1009.4347525018.

The spelling of 1028572141 in words is "one billion, twenty-eight million, five hundred seventy-two thousand, one hundred forty-one".