134587491 has 8 divisors (see below), whose sum is σ = 181466640. Its totient is φ = 88716672.

The previous prime is 134587477. The next prime is 134587501. The reversal of 134587491 is 194785431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 134587491 - 2⁵ = 134587459 is a prime.

It is a super-2 number, since 2×134587491² = 36227585467350162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (134587451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251770 + ... + 252303.

It is an arithmetic number, because the mean of its divisors is an integer number (22683330).

Almost surely, 2^134587491 is an apocalyptic number.

134587491 is a deficient number, since it is larger than the sum of its proper divisors (46879149).

134587491 is an equidigital number, since it uses as much as digits as its factorization.

134587491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504165.

The product of its digits is 120960, while the sum is 42.

The square root of 134587491 is about 11601.1848963802. The cubic root of 134587491 is about 512.4697468559.

The spelling of 134587491 in words is "one hundred thirty-four million, five hundred eighty-seven thousand, four hundred ninety-one".