134725661 has 8 divisors (see below), whose sum is σ = 156081984. Its totient is φ = 113896800.

The previous prime is 134725649. The next prime is 134725667. The reversal of 134725661 is 166527431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134725661 - 2¹⁰ = 134724637 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 (134725667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131315 + ... + 132336.

It is an arithmetic number, because the mean of its divisors is an integer number (19510248).

Almost surely, 2^134725661 is an apocalyptic number.

It is an amenable number.

134725661 is a deficient number, since it is larger than the sum of its proper divisors (21356323).

134725661 is an equidigital number, since it uses as much as digits as its factorization.

134725661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263731.

The product of its digits is 30240, while the sum is 35.

The square root of 134725661 is about 11607.1383639552. The cubic root of 134725661 is about 512.6450571746.

The spelling of 134725661 in words is "one hundred thirty-four million, seven hundred twenty-five thousand, six hundred sixty-one".