1601262013 has 4 divisors (see below), whose sum is σ = 1724436028. Its totient is φ = 1478088000.

The previous prime is 1601261983. The next prime is 1601262029. The reversal of 1601262013 is 3102621061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102621061 = 947 ⋅3276263.

It can be written as a sum of positive squares in 2 ways, for example, as 92871769 + 1508390244 = 9637^2 + 38838^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1601262013 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 (1601262083) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 61586988 + ... + 61587013.

It is an arithmetic number, because the mean of its divisors is an integer number (431109007).

Almost surely, 2^1601262013 is an apocalyptic number.

1601262013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1601262013 is a deficient number, since it is larger than the sum of its proper divisors (123174015).

1601262013 is a wasteful number, since it uses less digits than its factorization.

1601262013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123174014.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1601262013 is about 40015.7720530293. The cubic root of 1601262013 is about 1169.9145268361.

Adding to 1601262013 its reverse (3102621061), we get a palindrome (4703883074).

The spelling of 1601262013 in words is "one billion, six hundred one million, two hundred sixty-two thousand, thirteen".