1450189669 has 2 divisors, whose sum is σ = 1450189670. Its totient is φ = 1450189668.

The previous prime is 1450189619. The next prime is 1450189691. The reversal of 1450189669 is 9669810541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 909022500 + 541167169 = 30150^2 + 23263^2 .

It is an emirp because it is prime and its reverse (9669810541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1450189669 - 2²¹ = 1448092517 is a prime.

It is a super-2 number, since 2×1450189669² = 4206100152148659122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1450189619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 725094834 + 725094835.

It is an arithmetic number, because the mean of its divisors is an integer number (725094835).

Almost surely, 2^1450189669 is an apocalyptic number.

It is an amenable number.

1450189669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1450189669 is an equidigital number, since it uses as much as digits as its factorization.

1450189669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 1450189669 is about 38081.3559238638. The cubic root of 1450189669 is about 1131.9005448652.

The spelling of 1450189669 in words is "one billion, four hundred fifty million, one hundred eighty-nine thousand, six hundred sixty-nine".