155601273 has 8 divisors (see below), whose sum is σ = 212528736. Its totient is φ = 101204000.

The previous prime is 155601263. The next prime is 155601283. The reversal of 155601273 is 372106551.

It is an interprime number because it is at equal distance from previous prime (155601263) and next prime (155601283).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155601273 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155601273.

It is not an unprimeable number, because it can be changed into a prime (155601223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 632403 + ... + 632648.

It is an arithmetic number, because the mean of its divisors is an integer number (26566092).

Almost surely, 2^155601273 is an apocalyptic number.

It is an amenable number.

155601273 is a deficient number, since it is larger than the sum of its proper divisors (56927463).

155601273 is a wasteful number, since it uses less digits than its factorization.

155601273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1265095.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 155601273 is about 12474.0239297510. The cubic root of 155601273 is about 537.8622305388.

The spelling of 155601273 in words is "one hundred fifty-five million, six hundred one thousand, two hundred seventy-three".