1010213789 has 4 divisors (see below), whose sum is σ = 1087922556. Its totient is φ = 932505024.

The previous prime is 1010213777. The next prime is 1010213819. The reversal of 1010213789 is 9873120101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 569633689 + 440580100 = 23867^2 + 20990^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010213789 - 2²⁸ = 741778333 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 (1010213759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38854364 + ... + 38854389.

It is an arithmetic number, because the mean of its divisors is an integer number (271980639).

Almost surely, 2^1010213789 is an apocalyptic number.

It is an amenable number.

1010213789 is a deficient number, since it is larger than the sum of its proper divisors (77708767).

1010213789 is an equidigital number, since it uses as much as digits as its factorization.

1010213789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77708766.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 1010213789 is about 31783.8605112721. The cubic root of 1010213789 is about 1003.3930703853.

The spelling of 1010213789 in words is "one billion, ten million, two hundred thirteen thousand, seven hundred eighty-nine".