1450221545 has 4 divisors (see below), whose sum is σ = 1740265860. Its totient is φ = 1160177232.

The previous prime is 1450221527. The next prime is 1450221559. The reversal of 1450221545 is 5451220541.

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 1149684649 + 300536896 = 33907^2 + 17336^2 .

It is a cyclic number.

It is not a de Polignac number, because 1450221545 - 2⁶ = 1450221481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145022150 + ... + 145022159.

It is an arithmetic number, because the mean of its divisors is an integer number (435066465).

Almost surely, 2^1450221545 is an apocalyptic number.

It is an amenable number.

1450221545 is a deficient number, since it is larger than the sum of its proper divisors (290044315).

1450221545 is an equidigital number, since it uses as much as digits as its factorization.

1450221545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290044314.

The product of its (nonzero) digits is 8000, while the sum is 29.

The square root of 1450221545 is about 38081.7744465775. The cubic root of 1450221545 is about 1131.9088380787.

The spelling of 1450221545 in words is "one billion, four hundred fifty million, two hundred twenty-one thousand, five hundred forty-five".