134397649 has 3 divisors (see below), whose sum is σ = 134409243. Its totient is φ = 134386056.

The previous prime is 134397647. The next prime is 134397677. The reversal of 134397649 is 946793431.

The square root of 134397649 is 11593.

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., 127803025 + 6594624 = 11305^2 + 2568^2 .

It is not a de Polignac number, because 134397649 - 2¹ = 134397647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134397599 and 134397608.

It is not an unprimeable number, because it can be changed into a prime (134397643) 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, 5797 + ... + 17389.

It is an arithmetic number, because the mean of its divisors is an integer number (44803081).

Almost surely, 2^134397649 is an apocalyptic number.

134397649 is the 11593-rd square number.

134397649 is the 5797-th centered octagonal number.

It is an amenable number.

134397649 is a deficient number, since it is larger than the sum of its proper divisors (11594).

134397649 is an frugal number, since it uses more digits than its factorization.

134397649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23186 (or 11593 counting only the distinct ones).

The product of its digits is 489888, while the sum is 46.

The cubic root of 134397649 is about 512.2286792299.

The spelling of 134397649 in words is "one hundred thirty-four million, three hundred ninety-seven thousand, six hundred forty-nine".