136494041401 has 9 divisors (see below), whose sum is σ = 139919890159. Its totient is φ = 133150140400.

The previous prime is 136494041371. The next prime is 136494041441. The reversal of 136494041401 is 104140494631.

It is a happy number.

The square root of 136494041401 is 369451.

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., 6577047801 + 129916993600 = 81099^2 + 360440^2 .

It is not a de Polignac number, because 136494041401 - 2⁷ = 136494041273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136494041441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 15142986 + ... + 15151996.

Almost surely, 2^136494041401 is an apocalyptic number.

136494041401 is the 369451-st square number.

136494041401 is the 184726-th centered octagonal number.

It is an amenable number.

136494041401 is a deficient number, since it is larger than the sum of its proper divisors (3425848758).

136494041401 is an frugal number, since it uses more digits than its factorization.

136494041401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18104 (or 9052 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 136494041401 in words is "one hundred thirty-six billion, four hundred ninety-four million, forty-one thousand, four hundred one".