155004423 has 8 divisors (see below), whose sum is σ = 236197248. Its totient is φ = 88573944.

The previous prime is 155004407. The next prime is 155004427. The reversal of 155004423 is 324400551.

155004423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 155004423 - 2⁴ = 155004407 is a prime.

It is a super-2 number, since 2×155004423² = 48052742299125858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 155004393 and 155004402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155004427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3690561 + ... + 3690602.

It is an arithmetic number, because the mean of its divisors is an integer number (29524656).

Almost surely, 2^155004423 is an apocalyptic number.

155004423 is a deficient number, since it is larger than the sum of its proper divisors (81192825).

155004423 is an equidigital number, since it uses as much as digits as its factorization.

155004423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7381173.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 155004423 is about 12450.0772286761. The cubic root of 155004423 is about 537.1736449006.

Adding to 155004423 its reverse (324400551), we get a palindrome (479404974).

The spelling of 155004423 in words is "one hundred fifty-five million, four thousand, four hundred twenty-three".