73530155 has 16 divisors (see below), whose sum is σ = 90465024. Its totient is φ = 57356640.

The previous prime is 73530131. The next prime is 73530161. The reversal of 73530155 is 55103537.

It is not a de Polignac number, because 73530155 - 2⁶ = 73530091 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33440 + ... + 35570.

It is an arithmetic number, because the mean of its divisors is an integer number (5654064).

Almost surely, 2^73530155 is an apocalyptic number.

73530155 is a deficient number, since it is larger than the sum of its proper divisors (16934869).

73530155 is a wasteful number, since it uses less digits than its factorization.

73530155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2306.

The product of its (nonzero) digits is 7875, while the sum is 29.

The square root of 73530155 is about 8574.9725947084. The cubic root of 73530155 is about 418.9432143184.

The spelling of 73530155 in words is "seventy-three million, five hundred thirty thousand, one hundred fifty-five".