61943138 has 8 divisors (see below), whose sum is σ = 98380332. Its totient is φ = 29149696.

The previous prime is 61943137. The next prime is 61943153. The reversal of 61943138 is 83134916.

61943138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61669609 + 273529 = 7853^2 + 523^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 61943098 and 61943107.

It is not an unprimeable number, because it can be changed into a prime (61943131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910895 + ... + 910962.

Almost surely, 2^61943138 is an apocalyptic number.

61943138 is a deficient number, since it is larger than the sum of its proper divisors (36437194).

61943138 is a wasteful number, since it uses less digits than its factorization.

61943138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821876.

The product of its digits is 15552, while the sum is 35.

The square root of 61943138 is about 7870.3963051425. The cubic root of 61943138 is about 395.6681273826.

The spelling of 61943138 in words is "sixty-one million, nine hundred forty-three thousand, one hundred thirty-eight".