1021952263 has 6 divisors (see below), whose sum is σ = 1085603576. Its totient is φ = 961837152.

The previous prime is 1021952249. The next prime is 1021952279. The reversal of 1021952263 is 3622591201.

1021952263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021952263 - 2²⁹ = 485081351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021952863) 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, 1767795 + ... + 1768372.

Almost surely, 2^1021952263 is an apocalyptic number.

1021952263 is a deficient number, since it is larger than the sum of its proper divisors (63651313).

1021952263 is an equidigital number, since it uses as much as digits as its factorization.

1021952263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3536201 (or 3536184 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1021952263 is about 31967.9880974703. The cubic root of 1021952263 is about 1007.2645199590.

The spelling of 1021952263 in words is "one billion, twenty-one million, nine hundred fifty-two thousand, two hundred sixty-three".