1351604233 has 4 divisors (see below), whose sum is σ = 1544690560. Its totient is φ = 1158517908.

The previous prime is 1351604203. The next prime is 1351604249. The reversal of 1351604233 is 3324061531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1351604233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1351604203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96543153 + ... + 96543166.

It is an arithmetic number, because the mean of its divisors is an integer number (386172640).

Almost surely, 2^1351604233 is an apocalyptic number.

It is an amenable number.

1351604233 is a deficient number, since it is larger than the sum of its proper divisors (193086327).

1351604233 is an equidigital number, since it uses as much as digits as its factorization.

1351604233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193086326.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 1351604233 is about 36764.1705060783. The cubic root of 1351604233 is about 1105.6470574023.

Adding to 1351604233 its reverse (3324061531), we get a palindrome (4675665764).

The spelling of 1351604233 in words is "one billion, three hundred fifty-one million, six hundred four thousand, two hundred thirty-three".