155455423 has 4 divisors (see below), whose sum is σ = 157645008. Its totient is φ = 153265840.

The previous prime is 155455411. The next prime is 155455439. The reversal of 155455423 is 324554551.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 155455423 - 2¹³ = 155447231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155455453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094686 + ... + 1094827.

It is an arithmetic number, because the mean of its divisors is an integer number (39411252).

Almost surely, 2^155455423 is an apocalyptic number.

155455423 is a deficient number, since it is larger than the sum of its proper divisors (2189585).

155455423 is an equidigital number, since it uses as much as digits as its factorization.

155455423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189584.

The product of its digits is 60000, while the sum is 34.

The square root of 155455423 is about 12468.1764103657. The cubic root of 155455423 is about 537.6941262383.

The spelling of 155455423 in words is "one hundred fifty-five million, four hundred fifty-five thousand, four hundred twenty-three".