601656331 has 2 divisors, whose sum is σ = 601656332. Its totient is φ = 601656330.

The previous prime is 601656323. The next prime is 601656373. The reversal of 601656331 is 133656106.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 601656331 - 2³ = 601656323 is a prime.

It is a super-2 number, since 2×601656331² = 723980681264763122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 601656293 and 601656302.

It is not a weakly prime, because it can be changed into another prime (601656311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300828165 + 300828166.

It is an arithmetic number, because the mean of its divisors is an integer number (300828166).

Almost surely, 2^601656331 is an apocalyptic number.

601656331 is a deficient number, since it is larger than the sum of its proper divisors (1).

601656331 is an equidigital number, since it uses as much as digits as its factorization.

601656331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 601656331 is about 24528.6838415762. The cubic root of 601656331 is about 844.2080653782.

The spelling of 601656331 in words is "six hundred one million, six hundred fifty-six thousand, three hundred thirty-one".