1023455355 has 32 divisors (see below), whose sum is σ = 1772789760. Its totient is φ = 501198720.

The previous prime is 1023455353. The next prime is 1023455393. The reversal of 1023455355 is 5535543201.

It is a happy number.

It is not a de Polignac number, because 1023455355 - 2¹ = 1023455353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1023455353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23506 + ... + 50984.

It is an arithmetic number, because the mean of its divisors is an integer number (55399680).

Almost surely, 2^1023455355 is an apocalyptic number.

1023455355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1023455355 is a deficient number, since it is larger than the sum of its proper divisors (749334405).

1023455355 is a wasteful number, since it uses less digits than its factorization.

1023455355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27691.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 1023455355 is about 31991.4887899891. The cubic root of 1023455355 is about 1007.7581077814.

Adding to 1023455355 its reverse (5535543201), we get a palindrome (6558998556).

The spelling of 1023455355 in words is "one billion, twenty-three million, four hundred fifty-five thousand, three hundred fifty-five".