1012144621 has 8 divisors (see below), whose sum is σ = 1039516544. Its totient is φ = 984947040.

The previous prime is 1012144613. The next prime is 1012144663. The reversal of 1012144621 is 1264412101.

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 1012144621 - 2³ = 1012144613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012144592 and 1012144601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012144681) 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, 31776 + ... + 55081.

It is an arithmetic number, because the mean of its divisors is an integer number (129939568).

Almost surely, 2^1012144621 is an apocalyptic number.

It is an amenable number.

1012144621 is a deficient number, since it is larger than the sum of its proper divisors (27371923).

1012144621 is an equidigital number, since it uses as much as digits as its factorization.

1012144621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87171.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1012144621 is about 31814.2204210633. The cubic root of 1012144621 is about 1004.0319287027.

Adding to 1012144621 its reverse (1264412101), we get a palindrome (2276556722).

The spelling of 1012144621 in words is "one billion, twelve million, one hundred forty-four thousand, six hundred twenty-one".