1601001007 has 4 divisors (see below), whose sum is σ = 1601081800. Its totient is φ = 1600920216.

The previous prime is 1601001001. The next prime is 1601001013. The reversal of 1601001007 is 7001001061.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (1601001001) and next prime (1601001013).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601001007 is a prime.

It is a super-3 number, since 3×1601001007³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601001001) 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, 11869 + ... + 57817.

It is an arithmetic number, because the mean of its divisors is an integer number (400270450).

Almost surely, 2^1601001007 is an apocalyptic number.

1601001007 is a deficient number, since it is larger than the sum of its proper divisors (80793).

1601001007 is an equidigital number, since it uses as much as digits as its factorization.

1601001007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80792.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 1601001007 is about 40012.5106310514. The cubic root of 1601001007 is about 1169.8509579550.

Adding to 1601001007 its reverse (7001001061), we get a palindrome (8602002068).

The spelling of 1601001007 in words is "one billion, six hundred one million, one thousand, seven".