134007989 has 2 divisors, whose sum is σ = 134007990. Its totient is φ = 134007988.

The previous prime is 134007971. The next prime is 134008003. The reversal of 134007989 is 989700431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132940900 + 1067089 = 11530^2 + 1033^2 .

It is a cyclic number.

It is not a de Polignac number, because 134007989 - 2¹⁶ = 133942453 is a prime.

It is a super-2 number, since 2×134007989² = 35916282231648242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134007949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67003994 + 67003995.

It is an arithmetic number, because the mean of its divisors is an integer number (67003995).

Almost surely, 2^134007989 is an apocalyptic number.

It is an amenable number.

134007989 is a deficient number, since it is larger than the sum of its proper divisors (1).

134007989 is an equidigital number, since it uses as much as digits as its factorization.

134007989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 134007989 is about 11576.1819698897. The cubic root of 134007989 is about 511.7331640289.

The spelling of 134007989 in words is "one hundred thirty-four million, seven thousand, nine hundred eighty-nine".