1455220323 has 28 divisors (see below), whose sum is σ = 2240842368. Its totient is φ = 943909200.

The previous prime is 1455220313. The next prime is 1455220343. The reversal of 1455220323 is 3230225541.

It is a happy number.

1455220323 is a `hidden beast` number, since 1 + 455 + 2 + 203 + 2 + 3 = 666.

It is not a de Polignac number, because 1455220323 - 2⁹ = 1455219811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1455220313) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 3 + ... + 53948.

Almost surely, 2^1455220323 is an apocalyptic number.

1455220323 is a deficient number, since it is larger than the sum of its proper divisors (785622045).

1455220323 is an frugal number, since it uses more digits than its factorization.

1455220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54006 (or 53991 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 1455220323 is about 38147.3501438829. The cubic root of 1455220323 is about 1133.2078746264.

Adding to 1455220323 its reverse (3230225541), we get a palindrome (4685445864).

The spelling of 1455220323 in words is "one billion, four hundred fifty-five million, two hundred twenty thousand, three hundred twenty-three".