155323263 has 8 divisors (see below), whose sum is σ = 210492976. Its totient is φ = 101851200.

The previous prime is 155323261. The next prime is 155323283. The reversal of 155323263 is 362323551.

155323263 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 155323263 - 2¹ = 155323261 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 155323263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155323261) 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, 424198 + ... + 424563.

It is an arithmetic number, because the mean of its divisors is an integer number (26311622).

Almost surely, 2^155323263 is an apocalyptic number.

155323263 is a deficient number, since it is larger than the sum of its proper divisors (55169713).

155323263 is an equidigital number, since it uses as much as digits as its factorization.

155323263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848825.

The product of its digits is 16200, while the sum is 30.

The square root of 155323263 is about 12462.8753905349. The cubic root of 155323263 is about 537.5417099776.

The spelling of 155323263 in words is "one hundred fifty-five million, three hundred twenty-three thousand, two hundred sixty-three".