1021000094 has 4 divisors (see below), whose sum is σ = 1531500144. Its totient is φ = 510500046.

The previous prime is 1021000073. The next prime is 1021000103. The reversal of 1021000094 is 4900001201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4900001201 = 1279 ⋅3831119.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255250022 + ... + 255250025.

It is an arithmetic number, because the mean of its divisors is an integer number (382875036).

Almost surely, 2^1021000094 is an apocalyptic number.

1021000094 is a deficient number, since it is larger than the sum of its proper divisors (510500050).

1021000094 is an equidigital number, since it uses as much as digits as its factorization.

1021000094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510500049.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1021000094 is about 31953.0920882471. The cubic root of 1021000094 is about 1006.9515946868.

Adding to 1021000094 its reverse (4900001201), we get a palindrome (5921001295).

The spelling of 1021000094 in words is "one billion, twenty-one million, ninety-four", and thus it is an aban number.