135463213 has 4 divisors (see below), whose sum is σ = 137485120. Its totient is φ = 133441308.

The previous prime is 135463199. The next prime is 135463277. The reversal of 135463213 is 312364531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 312364531 = 157 ⋅1989583.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135463213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135463513) 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, 1010853 + ... + 1010986.

It is an arithmetic number, because the mean of its divisors is an integer number (34371280).

Almost surely, 2^135463213 is an apocalyptic number.

It is an amenable number.

135463213 is a deficient number, since it is larger than the sum of its proper divisors (2021907).

135463213 is an equidigital number, since it uses as much as digits as its factorization.

135463213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021906.

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

The square root of 135463213 is about 11638.8664826090. The cubic root of 135463213 is about 513.5788424307.

The spelling of 135463213 in words is "one hundred thirty-five million, four hundred sixty-three thousand, two hundred thirteen".