1048200581 has 4 divisors (see below), whose sum is σ = 1049054700. Its totient is φ = 1047346464.

The previous prime is 1048200577. The next prime is 1048200589. The reversal of 1048200581 is 1850028401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 716632900 + 331567681 = 26770^2 + 18209^2 .

It is a cyclic number.

It is not a de Polignac number, because 1048200581 - 2² = 1048200577 is a prime.

It is a super-2 number, since 2×1048200581² = 2197448916017475122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048200589) 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, 425216 + ... + 427673.

It is an arithmetic number, because the mean of its divisors is an integer number (262263675).

Almost surely, 2^1048200581 is an apocalyptic number.

It is an amenable number.

1048200581 is a deficient number, since it is larger than the sum of its proper divisors (854119).

1048200581 is an equidigital number, since it uses as much as digits as its factorization.

1048200581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854118.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 1048200581 is about 32375.9259481486. The cubic root of 1048200581 is about 1015.8154143789.

Adding to 1048200581 its reverse (1850028401), we get a palindrome (2898228982).

The spelling of 1048200581 in words is "one billion, forty-eight million, two hundred thousand, five hundred eighty-one".