1601297252 has 24 divisors (see below), whose sum is σ = 2969360856. Its totient is φ = 752979968.

The previous prime is 1601297251. The next prime is 1601297273. The reversal of 1601297252 is 2527921061.

It can be written as a sum of positive squares in 4 ways, for example, as 1216195876 + 385101376 = 34874^2 + 19624^2 .

It is not an unprimeable number, because it can be changed into a prime (1601297251) 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 7 ways as a sum of consecutive naturals, for example, 89228 + ... + 105660.

It is an arithmetic number, because the mean of its divisors is an integer number (123723369).

Almost surely, 2^1601297252 is an apocalyptic number.

It is an amenable number.

1601297252 is a deficient number, since it is larger than the sum of its proper divisors (1368063604).

1601297252 is a wasteful number, since it uses less digits than its factorization.

1601297252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17887 (or 17885 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 1601297252 is about 40016.2123644905. The cubic root of 1601297252 is about 1169.9231088827.

The spelling of 1601297252 in words is "one billion, six hundred one million, two hundred ninety-seven thousand, two hundred fifty-two".