136913401 has 3 divisors (see below), whose sum is σ = 136925103. Its totient is φ = 136901700.

The previous prime is 136913377. The next prime is 136913407. The reversal of 136913401 is 104319631.

The square root of 136913401 is 11701.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 107101801 + 29811600 = 10349^2 + 5460^2 .

It is not a de Polignac number, because 136913401 - 2⁵ = 136913369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 136913401.

It is not an unprimeable number, because it can be changed into a prime (136913407) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 5851 + ... + 17551.

It is an arithmetic number, because the mean of its divisors is an integer number (45641701).

Almost surely, 2^136913401 is an apocalyptic number.

136913401 is the 11701-st square number.

136913401 is the 5851-st centered octagonal number.

It is an amenable number.

136913401 is a deficient number, since it is larger than the sum of its proper divisors (11702).

136913401 is an frugal number, since it uses more digits than its factorization.

136913401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23402 (or 11701 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The cubic root of 136913401 is about 515.4050302913.

The spelling of 136913401 in words is "one hundred thirty-six million, nine hundred thirteen thousand, four hundred one".