463135381 has 4 divisors (see below), whose sum is σ = 478075264. Its totient is φ = 448195500.

The previous prime is 463135357. The next prime is 463135391. The reversal of 463135381 is 183531364.

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 not a de Polignac number, because 463135381 - 2¹⁵ = 463102613 is a prime.

It is a super-2 number, since 2×463135381² = 428988762268030322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (463135391) 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, 7469895 + ... + 7469956.

It is an arithmetic number, because the mean of its divisors is an integer number (119518816).

Almost surely, 2^463135381 is an apocalyptic number.

It is an amenable number.

463135381 is a deficient number, since it is larger than the sum of its proper divisors (14939883).

463135381 is a wasteful number, since it uses less digits than its factorization.

463135381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14939882.

The product of its digits is 25920, while the sum is 34.

The square root of 463135381 is about 21520.5804057418. The cubic root of 463135381 is about 773.6941622523.

The spelling of 463135381 in words is "four hundred sixty-three million, one hundred thirty-five thousand, three hundred eighty-one".