134239487 has 4 divisors (see below), whose sum is σ = 136130256. Its totient is φ = 132348720.

The previous prime is 134239459. The next prime is 134239519. The reversal of 134239487 is 784932431.

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 134239487 - 2¹² = 134235391 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 (134239187) 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, 945278 + ... + 945419.

It is an arithmetic number, because the mean of its divisors is an integer number (34032564).

Almost surely, 2^134239487 is an apocalyptic number.

134239487 is a deficient number, since it is larger than the sum of its proper divisors (1890769).

134239487 is an equidigital number, since it uses as much as digits as its factorization.

134239487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890768.

The product of its digits is 145152, while the sum is 41.

The square root of 134239487 is about 11586.1765479385. The cubic root of 134239487 is about 512.0276665042.

The spelling of 134239487 in words is "one hundred thirty-four million, two hundred thirty-nine thousand, four hundred eighty-seven".