136829709025 has 27 divisors (see below), whose sum is σ = 171077080531. Its totient is φ = 108562678640.

The previous prime is 136829709017. The next prime is 136829709043. The reversal of 136829709025 is 520907928631.

The square root of 136829709025 is 369905.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 49258695249 + 87571013776 = 221943^2 + 295924^2 .

It is not a de Polignac number, because 136829709025 - 2³ = 136829709017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 308870454 + ... + 308870896.

Almost surely, 2^136829709025 is an apocalyptic number.

136829709025 is the 369905-th square number.

136829709025 is the 184953-rd centered octagonal number.

It is an amenable number.

136829709025 is a deficient number, since it is larger than the sum of its proper divisors (34247371506).

136829709025 is an frugal number, since it uses more digits than its factorization.

136829709025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1230 (or 615 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 136829709025 in words is "one hundred thirty-six billion, eight hundred twenty-nine million, seven hundred nine thousand, twenty-five".