1454032721 has 2 divisors, whose sum is σ = 1454032722. Its totient is φ = 1454032720.

The previous prime is 1454032693. The next prime is 1454032753. The reversal of 1454032721 is 1272304541.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 997612225 + 456420496 = 31585^2 + 21364^2 .

It is a cyclic number.

It is not a de Polignac number, because 1454032721 - 2¹⁴ = 1454016337 is a prime.

It is a super-2 number, since 2×1454032721² = 4228422307477327682, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1454032621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727016360 + 727016361.

It is an arithmetic number, because the mean of its divisors is an integer number (727016361).

Almost surely, 2^1454032721 is an apocalyptic number.

It is an amenable number.

1454032721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1454032721 is an equidigital number, since it uses as much as digits as its factorization.

1454032721 is an evil number, because the sum of its binary digits is even.

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

The square root of 1454032721 is about 38131.7809838460. The cubic root of 1454032721 is about 1132.8995212716.

The spelling of 1454032721 in words is "one billion, four hundred fifty-four million, thirty-two thousand, seven hundred twenty-one".