601531889 has 6 divisors (see below), whose sum is σ = 699741234. Its totient is φ = 515598720.

The previous prime is 601531877. The next prime is 601531901. The reversal of 601531889 is 988135106.

It is an interprime number because it is at equal distance from previous prime (601531877) and next prime (601531901).

It can be written as a sum of positive squares in only one way, i.e., 454030864 + 147501025 = 21308^2 + 12145^2 .

It is not a de Polignac number, because 601531889 - 2⁴ = 601531873 is a prime.

It is a super-2 number, since 2×601531889² = 723681226967816642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (601531589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6138032 + ... + 6138129.

It is an arithmetic number, because the mean of its divisors is an integer number (116623539).

Almost surely, 2^601531889 is an apocalyptic number.

It is an amenable number.

601531889 is a deficient number, since it is larger than the sum of its proper divisors (98209345).

601531889 is a wasteful number, since it uses less digits than its factorization.

601531889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12276175 (or 12276168 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 601531889 is about 24526.1470475898. The cubic root of 601531889 is about 844.1498581822.

The spelling of 601531889 in words is "six hundred one million, five hundred thirty-one thousand, eight hundred eighty-nine".