18501064 has 8 divisors (see below), whose sum is σ = 34689510. Its totient is φ = 9250528.

The previous prime is 18501061. The next prime is 18501103. The reversal of 18501064 is 46010581.

It can be written as a sum of positive squares in only one way, i.e., 13912900 + 4588164 = 3730^2 + 2142^2 .

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

It is not an unprimeable number, because it can be changed into a prime (18501061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156309 + ... + 1156324.

Almost surely, 2^18501064 is an apocalyptic number.

It is an amenable number.

18501064 is a deficient number, since it is larger than the sum of its proper divisors (16188446).

18501064 is a wasteful number, since it uses less digits than its factorization.

18501064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2312639 (or 2312635 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 18501064 is about 4301.2863192306. The cubic root of 18501064 is about 264.4836939025.

The spelling of 18501064 in words is "eighteen million, five hundred one thousand, sixty-four".