155384073 has 24 divisors (see below), whose sum is σ = 244782720. Its totient is φ = 94404960.

The previous prime is 155384041. The next prime is 155384081. The reversal of 155384073 is 370483551.

155384073 is a `hidden beast` number, since 15 + 538 + 40 + 73 = 666.

It is not a de Polignac number, because 155384073 - 2⁵ = 155384041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155384003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 838 + ... + 17648.

It is an arithmetic number, because the mean of its divisors is an integer number (10199280).

Almost surely, 2^155384073 is an apocalyptic number.

155384073 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

155384073 is a deficient number, since it is larger than the sum of its proper divisors (89398647).

155384073 is a wasteful number, since it uses less digits than its factorization.

155384073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16909 (or 16906 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 155384073 is about 12465.3147974690. The cubic root of 155384073 is about 537.6118511053.

The spelling of 155384073 in words is "one hundred fifty-five million, three hundred eighty-four thousand, seventy-three".