1012642993 has 8 divisors (see below), whose sum is σ = 1047610880. Its totient is φ = 977819040.

The previous prime is 1012642951. The next prime is 1012642999. The reversal of 1012642993 is 3992462101.

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 1012642993 - 2⁹ = 1012642481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012642999) 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 7 ways as a sum of consecutive naturals, for example, 21573 + ... + 49906.

It is an arithmetic number, because the mean of its divisors is an integer number (130951360).

Almost surely, 2^1012642993 is an apocalyptic number.

It is an amenable number.

1012642993 is a deficient number, since it is larger than the sum of its proper divisors (34967887).

1012642993 is an equidigital number, since it uses as much as digits as its factorization.

1012642993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71967.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 1012642993 is about 31822.0519922899. The cubic root of 1012642993 is about 1004.1966941207.

The spelling of 1012642993 in words is "one billion, twelve million, six hundred forty-two thousand, nine hundred ninety-three".