73611138 has 16 divisors (see below), whose sum is σ = 148526496. Its totient is φ = 24319680.

The previous prime is 73611121. The next prime is 73611151. The reversal of 73611138 is 83111637.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53608 + ... + 54963.

It is an arithmetic number, because the mean of its divisors is an integer number (9282906).

Almost surely, 2^73611138 is an apocalyptic number.

73611138 is an abundant number, since it is smaller than the sum of its proper divisors (74915358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73611138 is a wasteful number, since it uses less digits than its factorization.

73611138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108689.

The product of its digits is 3024, while the sum is 30.

The square root of 73611138 is about 8579.6933511635. The cubic root of 73611138 is about 419.0969599963.

The spelling of 73611138 in words is "seventy-three million, six hundred eleven thousand, one hundred thirty-eight".