1012264621 has 8 divisors (see below), whose sum is σ = 1037849400. Its totient is φ = 986722560.

The previous prime is 1012264613. The next prime is 1012264651. The reversal of 1012264621 is 1264622101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 56836521 + 955428100 = 7539^2 + 30910^2 .

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 1012264621 - 2³ = 1012264613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012264651) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 40345 + ... + 60433.

It is an arithmetic number, because the mean of its divisors is an integer number (129731175).

Almost surely, 2^1012264621 is an apocalyptic number.

It is an amenable number.

1012264621 is a deficient number, since it is larger than the sum of its proper divisors (25584779).

1012264621 is a wasteful number, since it uses less digits than its factorization.

1012264621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21359.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 1012264621 is about 31816.1063142554. The cubic root of 1012264621 is about 1004.0716065207.

Adding to 1012264621 its reverse (1264622101), we get a palindrome (2276886722).

The spelling of 1012264621 in words is "one billion, twelve million, two hundred sixty-four thousand, six hundred twenty-one".