61138067 has 4 divisors (see below), whose sum is σ = 64355880. Its totient is φ = 57920256.

The previous prime is 61138039. The next prime is 61138073. The reversal of 61138067 is 76083116.

61138067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 61138067 - 2¹⁸ = 60875923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61138087) 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, 1608878 + ... + 1608915.

It is an arithmetic number, because the mean of its divisors is an integer number (16088970).

Almost surely, 2^61138067 is an apocalyptic number.

61138067 is a deficient number, since it is larger than the sum of its proper divisors (3217813).

61138067 is a wasteful number, since it uses less digits than its factorization.

61138067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217812.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 61138067 is about 7819.0835140699. The cubic root of 61138067 is about 393.9464892499.

The spelling of 61138067 in words is "sixty-one million, one hundred thirty-eight thousand, sixty-seven".