1210009993 has 8 divisors (see below), whose sum is σ = 1215832640. Its totient is φ = 1204202160.

The previous prime is 1210009987. The next prime is 1210010027. The reversal of 1210009993 is 3999000121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1210009993 - 2¹³ = 1210001801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210009943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181546 + ... + 188092.

It is an arithmetic number, because the mean of its divisors is an integer number (151979080).

Almost surely, 2^1210009993 is an apocalyptic number.

It is an amenable number.

1210009993 is a deficient number, since it is larger than the sum of its proper divisors (5822647).

1210009993 is an equidigital number, since it uses as much as digits as its factorization.

1210009993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7407.

The product of its (nonzero) digits is 4374, while the sum is 34.

The square root of 1210009993 is about 34785.1979008313. The cubic root of 1210009993 is about 1065.6051702470.

The spelling of 1210009993 in words is "one billion, two hundred ten million, nine thousand, nine hundred ninety-three".