1601245015 has 16 divisors (see below), whose sum is σ = 1986969600. Its totient is φ = 1237491360.

The previous prime is 1601244991. The next prime is 1601245043. The reversal of 1601245015 is 5105421061.

It is a happy number.

It is not a de Polignac number, because 1601245015 - 2⁹ = 1601244503 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82186 + ... + 99784.

It is an arithmetic number, because the mean of its divisors is an integer number (124185600).

Almost surely, 2^1601245015 is an apocalyptic number.

1601245015 is a deficient number, since it is larger than the sum of its proper divisors (385724585).

1601245015 is a wasteful number, since it uses less digits than its factorization.

1601245015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18222.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 1601245015 is about 40015.5596612118. The cubic root of 1601245015 is about 1169.9103871268.

Adding to 1601245015 its reverse (5105421061), we get a palindrome (6706666076).

The spelling of 1601245015 in words is "one billion, six hundred one million, two hundred forty-five thousand, fifteen".