20657134 has 8 divisors (see below), whose sum is σ = 31212288. Its totient is φ = 10253040.

The previous prime is 20657107. The next prime is 20657141. The reversal of 20657134 is 43175602.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37422 + ... + 37969.

It is an arithmetic number, because the mean of its divisors is an integer number (3901536).

Almost surely, 2^20657134 is an apocalyptic number.

20657134 is a deficient number, since it is larger than the sum of its proper divisors (10555154).

20657134 is a wasteful number, since it uses less digits than its factorization.

20657134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75530.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 20657134 is about 4545.0119911833. The cubic root of 20657134 is about 274.3826769714.

The spelling of 20657134 in words is "twenty million, six hundred fifty-seven thousand, one hundred thirty-four".