1350221249 has 4 divisors (see below), whose sum is σ = 1454084436. Its totient is φ = 1246358064.

The previous prime is 1350221239. The next prime is 1350221267. The reversal of 1350221249 is 9421220531.

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 309513649 + 1040707600 = 17593^2 + 32260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350221249 - 2²⁰ = 1349172673 is a prime.

It is a super-2 number, since 2×1350221249² = 3646194842502240002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1350221239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51931574 + ... + 51931599.

It is an arithmetic number, because the mean of its divisors is an integer number (363521109).

Almost surely, 2^1350221249 is an apocalyptic number.

It is an amenable number.

1350221249 is a deficient number, since it is larger than the sum of its proper divisors (103863187).

1350221249 is a wasteful number, since it uses less digits than its factorization.

1350221249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103863186.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 1350221249 is about 36745.3568359323. The cubic root of 1350221249 is about 1105.2698232041.

The spelling of 1350221249 in words is "one billion, three hundred fifty million, two hundred twenty-one thousand, two hundred forty-nine".