601651 has 2 divisors, whose sum is σ = 601652. Its totient is φ = 601650.

The previous prime is 601631. The next prime is 601669. The reversal of 601651 is 156106.

601651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 601651 - 2¹¹ = 599603 is a prime.

601651 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (601631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300825 + 300826.

It is an arithmetic number, because the mean of its divisors is an integer number (300826).

2⁶⁰¹⁶⁵¹ is an apocalyptic number.

601651 is a deficient number, since it is larger than the sum of its proper divisors (1).

601651 is an equidigital number, since it uses as much as digits as its factorization.

601651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 601651 is about 775.6616530421. The cubic root of 601651 is about 84.4205571991.

Adding to 601651 its reverse (156106), we get a palindrome (757757).

It can be divided in two parts, 60 and 1651, that added together give a triangular number (1711 = T₅₈).

The spelling of 601651 in words is "six hundred one thousand, six hundred fifty-one".