1601262215 has 16 divisors (see below), whose sum is σ = 2325195072. Its totient is φ = 1033419264.

The previous prime is 1601262203. The next prime is 1601262217. The reversal of 1601262215 is 5122621061.

It is a cyclic number.

It is not a de Polignac number, because 1601262215 - 2⁶ = 1601262151 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 (1601262217) 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, 1345004 + ... + 1346193.

It is an arithmetic number, because the mean of its divisors is an integer number (145324692).

Almost surely, 2^1601262215 is an apocalyptic number.

1601262215 is a deficient number, since it is larger than the sum of its proper divisors (723932857).

1601262215 is a wasteful number, since it uses less digits than its factorization.

1601262215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691226.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 1601262215 is about 40015.7745770340. The cubic root of 1601262215 is about 1169.9145760312.

Adding to 1601262215 its reverse (5122621061), we get a palindrome (6723883276).

The spelling of 1601262215 in words is "one billion, six hundred one million, two hundred sixty-two thousand, two hundred fifteen".