581400601 has 4 divisors (see below), whose sum is σ = 606678912. Its totient is φ = 556122292.

The previous prime is 581400569. The next prime is 581400649. The reversal of 581400601 is 106004185.

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 581400601 - 2⁵ = 581400569 is a prime.

It is a super-2 number, since 2×581400601² = 676053317686322402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (581400661) 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, 12639121 + ... + 12639166.

It is an arithmetic number, because the mean of its divisors is an integer number (151669728).

Almost surely, 2^581400601 is an apocalyptic number.

It is an amenable number.

581400601 is a deficient number, since it is larger than the sum of its proper divisors (25278311).

581400601 is a wasteful number, since it uses less digits than its factorization.

581400601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25278310.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 581400601 is about 24112.2500194403. The cubic root of 581400601 is about 834.6258383162.

Adding to 581400601 its reverse (106004185), we get a palindrome (687404786).

The spelling of 581400601 in words is "five hundred eighty-one million, four hundred thousand, six hundred one".