134342381869 has 4 divisors (see below), whose sum is σ = 136544716060. Its totient is φ = 132140047680.

The previous prime is 134342381843. The next prime is 134342381891. The reversal of 134342381869 is 968183243431.

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: 968183243431 = 449 ⋅2156310119.

It can be written as a sum of positive squares in 2 ways, for example, as 67449284100 + 66893097769 = 259710^2 + 258637^2 .

It is a cyclic number.

It is not a de Polignac number, because 134342381869 - 2¹³ = 134342373677 is a prime.

It is a super-2 number, since 2×134342381869² (a number of 23 digits) 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 (134342381809) 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, 1101167004 + ... + 1101167125.

It is an arithmetic number, because the mean of its divisors is an integer number (34136179015).

Almost surely, 2^134342381869 is an apocalyptic number.

It is an amenable number.

134342381869 is a deficient number, since it is larger than the sum of its proper divisors (2202334191).

134342381869 is an equidigital number, since it uses as much as digits as its factorization.

134342381869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202334190.

The product of its digits is 2985984, while the sum is 52.

The spelling of 134342381869 in words is "one hundred thirty-four billion, three hundred forty-two million, three hundred eighty-one thousand, eight hundred sixty-nine".