134156641 has 2 divisors, whose sum is σ = 134156642. Its totient is φ = 134156640.

The previous prime is 134156609. The next prime is 134156683. The reversal of 134156641 is 146651431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85100625 + 49056016 = 9225^2 + 7004^2 .

It is an emirp because it is prime and its reverse (146651431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134156641 - 2⁵ = 134156609 is a prime.

It is not a weakly prime, because it can be changed into another prime (134156441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67078320 + 67078321.

It is an arithmetic number, because the mean of its divisors is an integer number (67078321).

Almost surely, 2^134156641 is an apocalyptic number.

It is an amenable number.

134156641 is a deficient number, since it is larger than the sum of its proper divisors (1).

134156641 is an equidigital number, since it uses as much as digits as its factorization.

134156641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 134156641 is about 11582.6007873880. The cubic root of 134156641 is about 511.9223120754.

The spelling of 134156641 in words is "one hundred thirty-four million, one hundred fifty-six thousand, six hundred forty-one".