1353213434 has 4 divisors (see below), whose sum is σ = 2029820154. Its totient is φ = 676606716.

The previous prime is 1353213431. The next prime is 1353213443. The reversal of 1353213434 is 4343123531.

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., 686282809 + 666930625 = 26197^2 + 25825^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1353213397 and 1353213406.

It is not an unprimeable number, because it can be changed into a prime (1353213431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338303357 + ... + 338303360.

Almost surely, 2^1353213434 is an apocalyptic number.

1353213434 is a deficient number, since it is larger than the sum of its proper divisors (676606720).

1353213434 is an equidigital number, since it uses as much as digits as its factorization.

1353213434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676606719.

The product of its digits is 12960, while the sum is 29.

The square root of 1353213434 is about 36786.0494481264. The cubic root of 1353213434 is about 1106.0856726600.

Adding to 1353213434 its reverse (4343123531), we get a palindrome (5696336965).

The spelling of 1353213434 in words is "one billion, three hundred fifty-three million, two hundred thirteen thousand, four hundred thirty-four".