1146268621 has 4 divisors (see below), whose sum is σ = 1177248892. Its totient is φ = 1115288352.

The previous prime is 1146268619. The next prime is 1146268631. The reversal of 1146268621 is 1268626411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 532963396 + 613305225 = 23086^2 + 24765^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146268621 - 2¹ = 1146268619 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 30980233 = 1146268621 / (1 + 1 + 4 + 6 + 2 + 6 + 8 + 6 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1146268601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15490080 + ... + 15490153.

It is an arithmetic number, because the mean of its divisors is an integer number (294312223).

Almost surely, 2^1146268621 is an apocalyptic number.

It is an amenable number.

1146268621 is a deficient number, since it is larger than the sum of its proper divisors (30980271).

1146268621 is an equidigital number, since it uses as much as digits as its factorization.

1146268621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30980270.

The product of its digits is 27648, while the sum is 37.

The square root of 1146268621 is about 33856.5890337464. The cubic root of 1146268621 is about 1046.5551871996. Note that the first 3 decimals are identical.

The spelling of 1146268621 in words is "one billion, one hundred forty-six million, two hundred sixty-eight thousand, six hundred twenty-one".