61144862 has 8 divisors (see below), whose sum is σ = 92007576. Its totient is φ = 30475672.

The previous prime is 61144861. The next prime is 61144871. The reversal of 61144862 is 26844116.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61144861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47588 + ... + 48855.

It is an arithmetic number, because the mean of its divisors is an integer number (11500947).

Almost surely, 2^61144862 is an apocalyptic number.

61144862 is a deficient number, since it is larger than the sum of its proper divisors (30862714).

61144862 is a wasteful number, since it uses less digits than its factorization.

61144862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96762.

The product of its digits is 9216, while the sum is 32.

The square root of 61144862 is about 7819.5180158370. The cubic root of 61144862 is about 393.9610833611.

Adding to 61144862 its reverse (26844116), we get a palindrome (87988978).

The spelling of 61144862 in words is "sixty-one million, one hundred forty-four thousand, eight hundred sixty-two".