2132403561 has 6 divisors (see below), whose sum is σ = 3080138490. Its totient is φ = 1421602368.

The previous prime is 2132403557. The next prime is 2132403569. The reversal of 2132403561 is 1653042312.

It can be written as a sum of positive squares in only one way, i.e., 1828075536 + 304328025 = 42756^2 + 17445^2 .

It is not a de Polignac number, because 2132403561 - 2² = 2132403557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2132403569) 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 5 ways as a sum of consecutive naturals, for example, 118466856 + ... + 118466873.

It is an arithmetic number, because the mean of its divisors is an integer number (513356415).

Almost surely, 2^2132403561 is an apocalyptic number.

It is an amenable number.

2132403561 is a deficient number, since it is larger than the sum of its proper divisors (947734929).

2132403561 is a wasteful number, since it uses less digits than its factorization.

2132403561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236933735 (or 236933732 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 2132403561 is about 46177.9553575080. The cubic root of 2132403561 is about 1287.1321345237.

Adding to 2132403561 its reverse (1653042312), we get a palindrome (3785445873).

The spelling of 2132403561 in words is "two billion, one hundred thirty-two million, four hundred three thousand, five hundred sixty-one".