155260223 has 4 divisors (see below), whose sum is σ = 158563680. Its totient is φ = 151956768.

The previous prime is 155260187. The next prime is 155260247. The reversal of 155260223 is 322062551.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322062551 = 409 ⋅787439.

It is a cyclic number.

It is not a de Polignac number, because 155260223 - 2¹⁰ = 155259199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155260192 and 155260201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155260823) 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 3 ways as a sum of consecutive naturals, for example, 1651658 + ... + 1651751.

It is an arithmetic number, because the mean of its divisors is an integer number (39640920).

Almost surely, 2^155260223 is an apocalyptic number.

155260223 is a deficient number, since it is larger than the sum of its proper divisors (3303457).

155260223 is an equidigital number, since it uses as much as digits as its factorization.

155260223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303456.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 155260223 is about 12460.3460224827. The cubic root of 155260223 is about 537.4689773334.

The spelling of 155260223 in words is "one hundred fifty-five million, two hundred sixty thousand, two hundred twenty-three".