134640739 has 2 divisors, whose sum is σ = 134640740. Its totient is φ = 134640738.

The previous prime is 134640703. The next prime is 134640749. The reversal of 134640739 is 937046431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134640739 - 2¹⁵ = 134607971 is a prime.

It is a super-2 number, since 2×134640739² = 36256257196932242, which contains 22 as substring.

It is equal to p_7626187 and since 134640739 and 7626187 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 134640698 and 134640707.

It is not a weakly prime, because it can be changed into another prime (134640749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67320369 + 67320370.

It is an arithmetic number, because the mean of its divisors is an integer number (67320370).

Almost surely, 2^134640739 is an apocalyptic number.

134640739 is a deficient number, since it is larger than the sum of its proper divisors (1).

134640739 is an equidigital number, since it uses as much as digits as its factorization.

134640739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 134640739 is about 11603.4796074281. The cubic root of 134640739 is about 512.5373222076.

The spelling of 134640739 in words is "one hundred thirty-four million, six hundred forty thousand, seven hundred thirty-nine".