134525869 has 2 divisors, whose sum is σ = 134525870. Its totient is φ = 134525868.

The previous prime is 134525851. The next prime is 134525927. The reversal of 134525869 is 968525431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133864900 + 660969 = 11570^2 + 813^2 .

It is a cyclic number.

It is not a de Polignac number, because 134525869 - 2⁹ = 134525357 is a prime.

It is a super-2 number, since 2×134525869² = 36194418860410322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134525569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67262934 + 67262935.

It is an arithmetic number, because the mean of its divisors is an integer number (67262935).

Almost surely, 2^134525869 is an apocalyptic number.

It is an amenable number.

134525869 is a deficient number, since it is larger than the sum of its proper divisors (1).

134525869 is an equidigital number, since it uses as much as digits as its factorization.

134525869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 259200, while the sum is 43.

The square root of 134525869 is about 11598.5287429053. The cubic root of 134525869 is about 512.3915220734.

It can be divided in two parts, 13452 and 5869, that added together give a square (19321 = 139²).

The spelling of 134525869 in words is "one hundred thirty-four million, five hundred twenty-five thousand, eight hundred sixty-nine".