61661134 has 8 divisors (see below), whose sum is σ = 95681160. Its totient is φ = 29767416.

The previous prime is 61661123. The next prime is 61661153. The reversal of 61661134 is 43116616.

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, 531504 + ... + 531619.

It is an arithmetic number, because the mean of its divisors is an integer number (11960145).

Almost surely, 2^61661134 is an apocalyptic number.

61661134 is a deficient number, since it is larger than the sum of its proper divisors (34020026).

61661134 is a wasteful number, since it uses less digits than its factorization.

61661134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063154.

The product of its digits is 2592, while the sum is 28.

The square root of 61661134 is about 7852.4603787603. The cubic root of 61661134 is about 395.0667707452.

The spelling of 61661134 in words is "sixty-one million, six hundred sixty-one thousand, one hundred thirty-four".