601531001 has 4 divisors (see below), whose sum is σ = 602467152. Its totient is φ = 600594852.

The previous prime is 601530971. The next prime is 601531003. The reversal of 601531001 is 100135106.

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 601531001 - 2²² = 597336697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (601531003) 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, 467111 + ... + 468396.

It is an arithmetic number, because the mean of its divisors is an integer number (150616788).

Almost surely, 2^601531001 is an apocalyptic number.

It is an amenable number.

601531001 is a deficient number, since it is larger than the sum of its proper divisors (936151).

601531001 is an equidigital number, since it uses as much as digits as its factorization.

601531001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936150.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 601531001 is about 24526.1289444543. The cubic root of 601531001 is about 844.1494427953.

Adding to 601531001 its reverse (100135106), we get a palindrome (701666107).

The spelling of 601531001 in words is "six hundred one million, five hundred thirty-one thousand, one".