1454732021 has 2 divisors, whose sum is σ = 1454732022. Its totient is φ = 1454732020.

The previous prime is 1454731961. The next prime is 1454732023. The reversal of 1454732021 is 1202374541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1450771921 + 3960100 = 38089^2 + 1990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1454732021 is a prime.

It is a Sophie Germain prime.

Together with 1454732023, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1454732023) 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 as a sum of consecutive naturals, namely, 727366010 + 727366011.

It is an arithmetic number, because the mean of its divisors is an integer number (727366011).

Almost surely, 2^1454732021 is an apocalyptic number.

It is an amenable number.

1454732021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1454732021 is an equidigital number, since it uses as much as digits as its factorization.

1454732021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 1454732021 is about 38140.9493982517. The cubic root of 1454732021 is about 1133.0811104138.

The spelling of 1454732021 in words is "one billion, four hundred fifty-four million, seven hundred thirty-two thousand, twenty-one".