1450002721 has 2 divisors, whose sum is σ = 1450002722. Its totient is φ = 1450002720.

The previous prime is 1450002661. The next prime is 1450002733. The reversal of 1450002721 is 1272000541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 938564496 + 511438225 = 30636^2 + 22615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1450002721 - 2²⁵ = 1416448289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1450002692 and 1450002701.

It is not a weakly prime, because it can be changed into another prime (1450002121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725001360 + 725001361.

It is an arithmetic number, because the mean of its divisors is an integer number (725001361).

Almost surely, 2^1450002721 is an apocalyptic number.

It is an amenable number.

1450002721 is a deficient number, since it is larger than the sum of its proper divisors (1).

1450002721 is an equidigital number, since it uses as much as digits as its factorization.

1450002721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 1450002721 is about 38078.9012577832. The cubic root of 1450002721 is about 1131.8519039549.

The spelling of 1450002721 in words is "one billion, four hundred fifty million, two thousand, seven hundred twenty-one".