1036721144 has 8 divisors (see below), whose sum is σ = 1943852160. Its totient is φ = 518360568.

The previous prime is 1036721141. The next prime is 1036721171. The reversal of 1036721144 is 4411276301.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1036721141) 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 as a sum of consecutive naturals, namely, 64795064 + ... + 64795079.

It is an arithmetic number, because the mean of its divisors is an integer number (242981520).

Almost surely, 2^1036721144 is an apocalyptic number.

It is an amenable number.

1036721144 is a deficient number, since it is larger than the sum of its proper divisors (907131016).

1036721144 is a wasteful number, since it uses less digits than its factorization.

1036721144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129590149 (or 129590145 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1036721144 is about 32198.1543570435. The cubic root of 1036721144 is about 1012.0935380949.

Adding to 1036721144 its reverse (4411276301), we get a palindrome (5447997445).

The spelling of 1036721144 in words is "one billion, thirty-six million, seven hundred twenty-one thousand, one hundred forty-four".