61144288 has 12 divisors (see below), whose sum is σ = 120377880. Its totient is φ = 30572128.

The previous prime is 61144253. The next prime is 61144297. The reversal of 61144288 is 88244116.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955348 + ... + 955411.

It is an arithmetic number, because the mean of its divisors is an integer number (10031490).

Almost surely, 2^61144288 is an apocalyptic number.

It is an amenable number.

61144288 is a deficient number, since it is larger than the sum of its proper divisors (59233592).

61144288 is a wasteful number, since it uses less digits than its factorization.

61144288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1910769 (or 1910761 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 61144288 is about 7819.4813127215. The cubic root of 61144288 is about 393.9598505817.

The spelling of 61144288 in words is "sixty-one million, one hundred forty-four thousand, two hundred eighty-eight".