1020051541 has 4 divisors (see below), whose sum is σ = 1064401632. Its totient is φ = 975701452.

The previous prime is 1020051523. The next prime is 1020051553. The reversal of 1020051541 is 1451500201.

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 1020051541 - 2¹⁵ = 1020018773 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 (1020051511) 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, 22175011 + ... + 22175056.

It is an arithmetic number, because the mean of its divisors is an integer number (266100408).

Almost surely, 2^1020051541 is an apocalyptic number.

It is an amenable number.

1020051541 is a deficient number, since it is larger than the sum of its proper divisors (44350091).

1020051541 is an equidigital number, since it uses as much as digits as its factorization.

1020051541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44350090.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 1020051541 is about 31938.2457408042. The cubic root of 1020051541 is about 1006.6396642880.

Adding to 1020051541 its reverse (1451500201), we get a palindrome (2471551742).

The spelling of 1020051541 in words is "one billion, twenty million, fifty-one thousand, five hundred forty-one".