134557749 has 6 divisors (see below), whose sum is σ = 194361206. Its totient is φ = 89705160.

The previous prime is 134557741. The next prime is 134557799. The reversal of 134557749 is 947755431.

134557749 is a `hidden beast` number, since 1 + 34 + 5 + 577 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 132020100 + 2537649 = 11490^2 + 1593^2 .

It is not a de Polignac number, because 134557749 - 2³ = 134557741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134557741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7475422 + ... + 7475439.

Almost surely, 2^134557749 is an apocalyptic number.

It is an amenable number.

134557749 is a deficient number, since it is larger than the sum of its proper divisors (59803457).

134557749 is a wasteful number, since it uses less digits than its factorization.

134557749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14950867 (or 14950864 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 134557749 is about 11599.9029737322. The cubic root of 134557749 is about 512.4319944665.

The spelling of 134557749 in words is "one hundred thirty-four million, five hundred fifty-seven thousand, seven hundred forty-nine".