155430023 has 8 divisors (see below), whose sum is σ = 177903648. Its totient is φ = 133023744.

The previous prime is 155429983. The next prime is 155430029. The reversal of 155430023 is 320034551.

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

It is not a de Polignac number, because 155430023 - 2⁶ = 155429959 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 (155430029) 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 7 ways as a sum of consecutive naturals, for example, 11786 + ... + 21207.

It is an arithmetic number, because the mean of its divisors is an integer number (22237956).

Almost surely, 2^155430023 is an apocalyptic number.

155430023 is a deficient number, since it is larger than the sum of its proper divisors (22473625).

155430023 is an equidigital number, since it uses as much as digits as its factorization.

155430023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33673.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 155430023 is about 12467.1577755317. The cubic root of 155430023 is about 537.6648398692.

Adding to 155430023 its reverse (320034551), we get a palindrome (475464574).

The spelling of 155430023 in words is "one hundred fifty-five million, four hundred thirty thousand, twenty-three".