61144894 has 8 divisors (see below), whose sum is σ = 92878560. Its totient is φ = 30185376.

The previous prime is 61144871. The next prime is 61144901. The reversal of 61144894 is 49844116.

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, 193339 + ... + 193654.

It is an arithmetic number, because the mean of its divisors is an integer number (11609820).

Almost surely, 2^61144894 is an apocalyptic number.

61144894 is a deficient number, since it is larger than the sum of its proper divisors (31733666).

61144894 is a wasteful number, since it uses less digits than its factorization.

61144894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387074.

The product of its digits is 27648, while the sum is 37.

The square root of 61144894 is about 7819.5200619987. The cubic root of 61144894 is about 393.9611520872.

It can be divided in two parts, 6 and 1144894, that added together give a square (1144900 = 1070²).

The spelling of 61144894 in words is "sixty-one million, one hundred forty-four thousand, eight hundred ninety-four".