581141648 has 10 divisors (see below), whose sum is σ = 1125961974. Its totient is φ = 290570816.

The previous prime is 581141629. The next prime is 581141653. The reversal of 581141648 is 846141185.

It can be written as a sum of positive squares in only one way, i.e., 503912704 + 77228944 = 22448^2 + 8788^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18160661 + ... + 18160692.

Almost surely, 2^581141648 is an apocalyptic number.

It is an amenable number.

581141648 is a deficient number, since it is larger than the sum of its proper divisors (544820326).

581141648 is a wasteful number, since it uses less digits than its factorization.

581141648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36321361 (or 36321355 counting only the distinct ones).

The product of its digits is 30720, while the sum is 38.

The square root of 581141648 is about 24106.8796819497. The cubic root of 581141648 is about 834.5019071519.

The spelling of 581141648 in words is "five hundred eighty-one million, one hundred forty-one thousand, six hundred forty-eight".