1351643225354 has 4 divisors (see below), whose sum is σ = 2027464838034. Its totient is φ = 675821612676.

The previous prime is 1351643225353. The next prime is 1351643225363. The reversal of 1351643225354 is 4535223461531.

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

It can be written as a sum of positive squares in only one way, i.e., 1149983851129 + 201659374225 = 1072373^2 + 449065^2 .

It is not an unprimeable number, because it can be changed into a prime (1351643225351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337910806337 + ... + 337910806340.

Almost surely, 2^{1351643225354} is an apocalyptic number.

1351643225354 is a deficient number, since it is larger than the sum of its proper divisors (675821612680).

1351643225354 is an equidigital number, since it uses as much as digits as its factorization.

1351643225354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675821612679.

The product of its digits is 1296000, while the sum is 44.

Adding to 1351643225354 its reverse (4535223461531), we get a palindrome (5886866686885).

The spelling of 1351643225354 in words is "one trillion, three hundred fifty-one billion, six hundred forty-three million, two hundred twenty-five thousand, three hundred fifty-four".