155850163 has 4 divisors (see below), whose sum is σ = 178114480. Its totient is φ = 133585848.

The previous prime is 155850161. The next prime is 155850193. The reversal of 155850163 is 361058551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361058551 = 7 ⋅51579793.

It is a cyclic number.

It is not a de Polignac number, because 155850163 - 2¹ = 155850161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155850161) 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 3 ways as a sum of consecutive naturals, for example, 11132148 + ... + 11132161.

It is an arithmetic number, because the mean of its divisors is an integer number (44528620).

Almost surely, 2^155850163 is an apocalyptic number.

155850163 is a deficient number, since it is larger than the sum of its proper divisors (22264317).

155850163 is an equidigital number, since it uses as much as digits as its factorization.

155850163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22264316.

The product of its (nonzero) digits is 18000, while the sum is 34.

The square root of 155850163 is about 12483.9962752317. The cubic root of 155850163 is about 538.1488546249.

The spelling of 155850163 in words is "one hundred fifty-five million, eight hundred fifty thousand, one hundred sixty-three".