134577621 has 24 divisors (see below), whose sum is σ = 204533784. Its totient is φ = 85155840.

The previous prime is 134577587. The next prime is 134577647. The reversal of 134577621 is 126775431.

It is a happy number.

134577621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9696996 + 124880625 = 3114^2 + 11175^2 .

It is not a de Polignac number, because 134577621 - 2⁹ = 134577109 is a prime.

It is a super-2 number, since 2×134577621² = 36222272148039282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134577671) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8725 + ... + 18581.

It is an arithmetic number, because the mean of its divisors is an integer number (8522241).

Almost surely, 2^134577621 is an apocalyptic number.

It is an amenable number.

134577621 is a deficient number, since it is larger than the sum of its proper divisors (69956163).

134577621 is a wasteful number, since it uses less digits than its factorization.

134577621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9941 (or 9938 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 134577621 is about 11600.7595009982. The cubic root of 134577621 is about 512.4572191932.

The spelling of 134577621 in words is "one hundred thirty-four million, five hundred seventy-seven thousand, six hundred twenty-one".