1233455401 has 4 divisors (see below), whose sum is σ = 1237845204. Its totient is φ = 1229065600.

The previous prime is 1233455389. The next prime is 1233455413. The reversal of 1233455401 is 1045543321.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1233455389) and next prime (1233455413).

It can be written as a sum of positive squares in 2 ways, for example, as 1064325376 + 169130025 = 32624^2 + 13005^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233455401 - 2¹³ = 1233447209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1233455401.

It is not an unprimeable number, because it can be changed into a prime (1233455501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2194480 + ... + 2195041.

It is an arithmetic number, because the mean of its divisors is an integer number (309461301).

Almost surely, 2^1233455401 is an apocalyptic number.

It is an amenable number.

1233455401 is a deficient number, since it is larger than the sum of its proper divisors (4389803).

1233455401 is an equidigital number, since it uses as much as digits as its factorization.

1233455401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4389802.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 1233455401 is about 35120.5837223700. The cubic root of 1233455401 is about 1072.4436539061.

Adding to 1233455401 its reverse (1045543321), we get a palindrome (2278998722).

The spelling of 1233455401 in words is "one billion, two hundred thirty-three million, four hundred fifty-five thousand, four hundred one".