134282391 has 4 divisors (see below), whose sum is σ = 179043192. Its totient is φ = 89521592.

The previous prime is 134282387. The next prime is 134282413. The reversal of 134282391 is 193282431.

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

It is a cyclic number.

It is not a de Polignac number, because 134282391 - 2² = 134282387 is a prime.

It is a super-3 number, since 3×134282391³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134282341) 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, 22380396 + ... + 22380401.

It is an arithmetic number, because the mean of its divisors is an integer number (44760798).

Almost surely, 2^134282391 is an apocalyptic number.

134282391 is a deficient number, since it is larger than the sum of its proper divisors (44760801).

134282391 is an equidigital number, since it uses as much as digits as its factorization.

134282391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44760800.

The product of its digits is 10368, while the sum is 33.

The square root of 134282391 is about 11588.0279167769. The cubic root of 134282391 is about 512.0822100555.

The spelling of 134282391 in words is "one hundred thirty-four million, two hundred eighty-two thousand, three hundred ninety-one".