1601512013 has 16 divisors (see below), whose sum is σ = 1722695040. Its totient is φ = 1483485696.

The previous prime is 1601512009. The next prime is 1601512051. The reversal of 1601512013 is 3102151061.

It is a cyclic number.

It is not a de Polignac number, because 1601512013 - 2² = 1601512009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1601512063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341120 + ... + 345782.

It is an arithmetic number, because the mean of its divisors is an integer number (107668440).

Almost surely, 2^1601512013 is an apocalyptic number.

It is an amenable number.

1601512013 is a deficient number, since it is larger than the sum of its proper divisors (121183027).

1601512013 is a wasteful number, since it uses less digits than its factorization.

1601512013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4996.

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 1601512013 is about 40018.8956994068. The cubic root of 1601512013 is about 1169.9754086925.

Adding to 1601512013 its reverse (3102151061), we get a palindrome (4703663074).

The spelling of 1601512013 in words is "one billion, six hundred one million, five hundred twelve thousand, thirteen".