134487479 has 4 divisors (see below), whose sum is σ = 153699984. Its totient is φ = 115274976.

The previous prime is 134487461. The next prime is 134487511. The reversal of 134487479 is 974784431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974784431 = 101 ⋅9651331.

It is a cyclic number.

It is not a de Polignac number, because 134487479 - 2¹⁶ = 134421943 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 (134487439) 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, 9606242 + ... + 9606255.

It is an arithmetic number, because the mean of its divisors is an integer number (38424996).

Almost surely, 2^134487479 is an apocalyptic number.

134487479 is a deficient number, since it is larger than the sum of its proper divisors (19212505).

134487479 is an equidigital number, since it uses as much as digits as its factorization.

134487479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19212504.

The product of its digits is 677376, while the sum is 47.

The square root of 134487479 is about 11596.8736735381. The cubic root of 134487479 is about 512.3427765988.

The spelling of 134487479 in words is "one hundred thirty-four million, four hundred eighty-seven thousand, four hundred seventy-nine".