153531023 has 4 divisors (see below), whose sum is σ = 153619200. Its totient is φ = 153442848.

The previous prime is 153531013. The next prime is 153531047. The reversal of 153531023 is 320135351.

153531023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 153531023 - 2¹⁴ = 153514639 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153531023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153531013) 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, 41423 + ... + 44976.

It is an arithmetic number, because the mean of its divisors is an integer number (38404800).

Almost surely, 2^153531023 is an apocalyptic number.

153531023 is a deficient number, since it is larger than the sum of its proper divisors (88177).

153531023 is an equidigital number, since it uses as much as digits as its factorization.

153531023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88176.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 153531023 is about 12390.7636165008. The cubic root of 153531023 is about 535.4661823048.

Adding to 153531023 its reverse (320135351), we get a palindrome (473666374).

The spelling of 153531023 in words is "one hundred fifty-three million, five hundred thirty-one thousand, twenty-three".