134880019 has 2 divisors, whose sum is σ = 134880020. Its totient is φ = 134880018.

The previous prime is 134879999. The next prime is 134880029. The reversal of 134880019 is 910088431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134880019 - 2¹⁷ = 134748947 is a prime.

It is a super-2 number, since 2×134880019² = 36385239050880722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134880029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67440009 + 67440010.

It is an arithmetic number, because the mean of its divisors is an integer number (67440010).

Almost surely, 2^134880019 is an apocalyptic number.

134880019 is a deficient number, since it is larger than the sum of its proper divisors (1).

134880019 is an equidigital number, since it uses as much as digits as its factorization.

134880019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 134880019 is about 11613.7857307598. The cubic root of 134880019 is about 512.8407651630.

The spelling of 134880019 in words is "one hundred thirty-four million, eight hundred eighty thousand, nineteen".