1150046021 has 4 divisors (see below), whose sum is σ = 1150117344. Its totient is φ = 1149974700.

The previous prime is 1150045999. The next prime is 1150046063. The reversal of 1150046021 is 1206400511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1150046021 - 2¹⁰ = 1150044997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1150045984 and 1150046002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150046071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1286 + ... + 47976.

It is an arithmetic number, because the mean of its divisors is an integer number (287529336).

Almost surely, 2^1150046021 is an apocalyptic number.

It is an amenable number.

1150046021 is a deficient number, since it is larger than the sum of its proper divisors (71323).

1150046021 is an equidigital number, since it uses as much as digits as its factorization.

1150046021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71322.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1150046021 is about 33912.3284514644. The cubic root of 1150046021 is about 1047.7035285565.

Adding to 1150046021 its reverse (1206400511), we get a palindrome (2356446532).

The spelling of 1150046021 in words is "one billion, one hundred fifty million, forty-six thousand, twenty-one".