2187241064 has 8 divisors (see below), whose sum is σ = 4101077010. Its totient is φ = 1093620528.

The previous prime is 2187241057. The next prime is 2187241079. The reversal of 2187241064 is 4601427812.

It can be written as a sum of positive squares in only one way, i.e., 2175476164 + 11764900 = 46642^2 + 3430^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136702559 + ... + 136702574.

Almost surely, 2^2187241064 is an apocalyptic number.

It is an amenable number.

2187241064 is a deficient number, since it is larger than the sum of its proper divisors (1913835946).

2187241064 is a wasteful number, since it uses less digits than its factorization.

2187241064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273405139 (or 273405135 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 2187241064 is about 46767.9491104752. The cubic root of 2187241064 is about 1298.0723034930.

Adding to 2187241064 its reverse (4601427812), we get a palindrome (6788668876).

The spelling of 2187241064 in words is "two billion, one hundred eighty-seven million, two hundred forty-one thousand, sixty-four".