1601018 has 4 divisors (see below), whose sum is σ = 2401530. Its totient is φ = 800508.

The previous prime is 1600993. The next prime is 1601023. The reversal of 1601018 is 8101061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1261129 + 339889 = 1123^2 + 583^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1600987 and 1601005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400253 + ... + 400256.

2^1601018 is an apocalyptic number.

1601018 is a deficient number, since it is larger than the sum of its proper divisors (800512).

1601018 is an equidigital number, since it uses as much as digits as its factorization.

1601018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800511.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1601018 is about 1265.3133999132. The cubic root of 1601018 is about 116.9855096867.

Adding to 1601018 its reverse (8101061), we get a palindrome (9702079).

The spelling of 1601018 in words is "one million, six hundred one thousand, eighteen".