135420433432153 has 4 divisors (see below), whose sum is σ = 135421351802548. Its totient is φ = 135419515061760.

The previous prime is 135420433432117. The next prime is 135420433432189. The reversal of 135420433432153 is 351234334024531.

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 (135420433432117) and next prime (135420433432189).

It can be written as a sum of positive squares in 2 ways, for example, as 103040202360384 + 32380231071769 = 10150872^2 + 5690363^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135420433432153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135420433432553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458963976 + ... + 459258937.

It is an arithmetic number, because the mean of its divisors is an integer number (33855337950637).

Almost surely, 2^{135420433432153} is an apocalyptic number.

It is an amenable number.

135420433432153 is a deficient number, since it is larger than the sum of its proper divisors (918370395).

135420433432153 is an equidigital number, since it uses as much as digits as its factorization.

135420433432153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918370394.

The product of its (nonzero) digits is 1555200, while the sum is 43.

Adding to 135420433432153 its reverse (351234334024531), we get a palindrome (486654767456684).

The spelling of 135420433432153 in words is "one hundred thirty-five trillion, four hundred twenty billion, four hundred thirty-three million, four hundred thirty-two thousand, one hundred fifty-three".