1021545036 has 18 divisors (see below), whose sum is σ = 2582238932. Its totient is φ = 340515000.

The previous prime is 1021545029. The next prime is 1021545037. The reversal of 1021545036 is 6305451201.

1021545036 is a `hidden beast` number, since 1 + 0 + 2 + 154 + 503 + 6 = 666.

1021545036 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1021545037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14188090 + ... + 14188161.

Almost surely, 2^1021545036 is an apocalyptic number.

It is an amenable number.

1021545036 is an abundant number, since it is smaller than the sum of its proper divisors (1560693896).

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

1021545036 is a wasteful number, since it uses less digits than its factorization.

1021545036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28376261 (or 28376256 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1021545036 is about 31961.6181692980. The cubic root of 1021545036 is about 1007.1307107720.

Adding to 1021545036 its reverse (6305451201), we get a palindrome (7326996237).

The spelling of 1021545036 in words is "one billion, twenty-one million, five hundred forty-five thousand, thirty-six".