134307989 has 8 divisors (see below), whose sum is σ = 137038392. Its totient is φ = 131584960.

The previous prime is 134307967. The next prime is 134307991. The reversal of 134307989 is 989703431.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 33466225 + 100841764 = 5785^2 + 10042^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 134307989 - 2¹⁶ = 134242453 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134307919) 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, 48527 + ... + 51219.

It is an arithmetic number, because the mean of its divisors is an integer number (17129799).

Almost surely, 2^134307989 is an apocalyptic number.

It is an amenable number.

134307989 is a deficient number, since it is larger than the sum of its proper divisors (2730403).

134307989 is an equidigital number, since it uses as much as digits as its factorization.

134307989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 134307989 is about 11589.1323661437. The cubic root of 134307989 is about 512.1147470781.

The spelling of 134307989 in words is "one hundred thirty-four million, three hundred seven thousand, nine hundred eighty-nine".