61368418 has 4 divisors (see below), whose sum is σ = 92052630. Its totient is φ = 30684208.

The previous prime is 61368413. The next prime is 61368427. The reversal of 61368418 is 81486316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 42680089 + 18688329 = 6533^2 + 4323^2 .

It is not an unprimeable number, because it can be changed into a prime (61368413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15342103 + ... + 15342106.

Almost surely, 2^61368418 is an apocalyptic number.

61368418 is a deficient number, since it is larger than the sum of its proper divisors (30684212).

61368418 is a wasteful number, since it uses less digits than its factorization.

61368418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30684211.

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

The square root of 61368418 is about 7833.7997166126. The cubic root of 61368418 is about 394.4406289447.

The spelling of 61368418 in words is "sixty-one million, three hundred sixty-eight thousand, four hundred eighteen".