1012027621 has 8 divisors (see below), whose sum is σ = 1105214688. Its totient is φ = 919038000.

The previous prime is 1012027603. The next prime is 1012027651. The reversal of 1012027621 is 1267202101.

It is a happy number.

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 1012027621 - 2¹³ = 1012019429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012027592 and 1012027601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012027651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38535 + ... + 59236.

It is an arithmetic number, because the mean of its divisors is an integer number (138151836).

Almost surely, 2^1012027621 is an apocalyptic number.

1012027621 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1012027621 is a deficient number, since it is larger than the sum of its proper divisors (93187067).

1012027621 is an equidigital number, since it uses as much as digits as its factorization.

1012027621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98723.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1012027621 is about 31812.3815675595. The cubic root of 1012027621 is about 1003.9932398105.

Adding to 1012027621 its reverse (1267202101), we get a palindrome (2279229722).

The spelling of 1012027621 in words is "one billion, twelve million, twenty-seven thousand, six hundred twenty-one".