155235423 has 32 divisors (see below), whose sum is σ = 242127360. Its totient is φ = 86636160.

The previous prime is 155235413. The next prime is 155235433. The reversal of 155235423 is 324532551.

It is an interprime number because it is at equal distance from previous prime (155235413) and next prime (155235433).

It is not a de Polignac number, because 155235423 - 2¹² = 155231327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155235403) 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 31 ways as a sum of consecutive naturals, for example, 228961 + ... + 229637.

It is an arithmetic number, because the mean of its divisors is an integer number (7566480).

Almost surely, 2^155235423 is an apocalyptic number.

155235423 is a deficient number, since it is larger than the sum of its proper divisors (86891937).

155235423 is a wasteful number, since it uses less digits than its factorization.

155235423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 927.

The product of its digits is 18000, while the sum is 30.

The square root of 155235423 is about 12459.3508257854. The cubic root of 155235423 is about 537.4403588413.

Adding to 155235423 its reverse (324532551), we get a palindrome (479767974).

The spelling of 155235423 in words is "one hundred fifty-five million, two hundred thirty-five thousand, four hundred twenty-three".