1021756052 has 12 divisors (see below), whose sum is σ = 1794873696. Its totient is φ = 508935000.

The previous prime is 1021756051. The next prime is 1021756111. The reversal of 1021756052 is 2506571201.

1021756052 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021756051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484574 + ... + 486677.

It is an arithmetic number, because the mean of its divisors is an integer number (149572808).

Almost surely, 2^1021756052 is an apocalyptic number.

It is an amenable number.

1021756052 is a deficient number, since it is larger than the sum of its proper divisors (773117644).

1021756052 is a wasteful number, since it uses less digits than its factorization.

1021756052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971518 (or 971516 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 1021756052 is about 31964.9190832700. The cubic root of 1021756052 is about 1007.2000521635.

The spelling of 1021756052 in words is "one billion, twenty-one million, seven hundred fifty-six thousand, fifty-two".