155090193 has 16 divisors (see below), whose sum is σ = 212551680. Its totient is φ = 100550736.

The previous prime is 155090191. The next prime is 155090203. The reversal of 155090193 is 391090551.

It is not a de Polignac number, because 155090193 - 2¹ = 155090191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155090191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10996 + ... + 20762.

It is an arithmetic number, because the mean of its divisors is an integer number (13284480).

Almost surely, 2^155090193 is an apocalyptic number.

It is an amenable number.

155090193 is a deficient number, since it is larger than the sum of its proper divisors (57461487).

155090193 is an equidigital number, since it uses as much as digits as its factorization.

155090193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9916.

The product of its (nonzero) digits is 6075, while the sum is 33.

The square root of 155090193 is about 12453.5213092523. The cubic root of 155090193 is about 537.2727063492.

The spelling of 155090193 in words is "one hundred fifty-five million, ninety thousand, one hundred ninety-three".