134742869 has 4 divisors (see below), whose sum is σ = 134877420. Its totient is φ = 134608320.

The previous prime is 134742841. The next prime is 134742871. The reversal of 134742869 is 968247431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51696100 + 83046769 = 7190^2 + 9113^2 .

It is a cyclic number.

It is not a de Polignac number, because 134742869 - 2²⁰ = 133694293 is a prime.

It is a super-2 number, since 2×134742869² = 36311281492702322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134742469) 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, 65762 + ... + 67779.

It is an arithmetic number, because the mean of its divisors is an integer number (33719355).

Almost surely, 2^134742869 is an apocalyptic number.

It is an amenable number.

134742869 is a deficient number, since it is larger than the sum of its proper divisors (134551).

134742869 is a wasteful number, since it uses less digits than its factorization.

134742869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134550.

The product of its digits is 290304, while the sum is 44.

The square root of 134742869 is about 11607.8796082661. The cubic root of 134742869 is about 512.6668823179. Note that the first 3 decimals are identical.

The spelling of 134742869 in words is "one hundred thirty-four million, seven hundred forty-two thousand, eight hundred sixty-nine".