1455221356 has 6 divisors (see below), whose sum is σ = 2546637380. Its totient is φ = 727610676.

The previous prime is 1455221353. The next prime is 1455221377. The reversal of 1455221356 is 6531225541.

It is not an unprimeable number, because it can be changed into a prime (1455221353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181902666 + ... + 181902673.

Almost surely, 2^1455221356 is an apocalyptic number.

It is an amenable number.

1455221356 is a deficient number, since it is larger than the sum of its proper divisors (1091416024).

1455221356 is a wasteful number, since it uses less digits than its factorization.

1455221356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363805343 (or 363805341 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

The square root of 1455221356 is about 38147.3636834841. The cubic root of 1455221356 is about 1133.2081427653.

Adding to 1455221356 its reverse (6531225541), we get a palindrome (7986446897).

The spelling of 1455221356 in words is "one billion, four hundred fifty-five million, two hundred twenty-one thousand, three hundred fifty-six".