155424073 has 8 divisors (see below), whose sum is σ = 177880320. Its totient is φ = 133031040.

The previous prime is 155423981. The next prime is 155424083. The reversal of 155424073 is 370424551.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 155424073 - 2²⁵ = 121869641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155424083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10408 + ... + 20473.

It is an arithmetic number, because the mean of its divisors is an integer number (22235040).

Almost surely, 2^155424073 is an apocalyptic number.

It is an amenable number.

155424073 is a deficient number, since it is larger than the sum of its proper divisors (22456247).

155424073 is an equidigital number, since it uses as much as digits as its factorization.

155424073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31607.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 155424073 is about 12466.9191462847. The cubic root of 155424073 is about 537.6579790183.

The spelling of 155424073 in words is "one hundred fifty-five million, four hundred twenty-four thousand, seventy-three".