73120090 has 16 divisors (see below), whose sum is σ = 133774920. Its totient is φ = 28768320.

The previous prime is 73120087. The next prime is 73120121. The reversal of 73120090 is 9002137.

It can be written as a sum of positive squares in 4 ways, for example, as 50395801 + 22724289 = 7099^2 + 4767^2 .

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, 59325 + ... + 60544.

Almost surely, 2^73120090 is an apocalyptic number.

73120090 is a deficient number, since it is larger than the sum of its proper divisors (60654830).

73120090 is a wasteful number, since it uses less digits than its factorization.

73120090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119937.

The product of its (nonzero) digits is 378, while the sum is 22.

The square root of 73120090 is about 8551.0285930992. The cubic root of 73120090 is about 418.1629707236.

The spelling of 73120090 in words is "seventy-three million, one hundred twenty thousand, ninety".