1012064544 has 120 divisors (see below), whose sum is σ = 2986051068. Its totient is φ = 336268800.

The previous prime is 1012064539. The next prime is 1012064549. The reversal of 1012064544 is 4454602101.

1012064544 is a `hidden beast` number, since 1 + 0 + 1 + 206 + 454 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1012064539) and next prime (1012064549).

It can be written as a sum of positive squares in 2 ways, for example, as 1010476944 + 1587600 = 31788^2 + 1260^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1012064549) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1443394 + ... + 1444094.

Almost surely, 2^1012064544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012064544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1493025534).

1012064544 is an abundant number, since it is smaller than the sum of its proper divisors (1973986524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012064544 is an equidigital number, since it uses as much as digits as its factorization.

1012064544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1012064544 is about 31812.9618866273. The cubic root of 1012064544 is about 1004.0054496194.

Adding to 1012064544 its reverse (4454602101), we get a palindrome (5466666645).

The spelling of 1012064544 in words is "one billion, twelve million, sixty-four thousand, five hundred forty-four".