151223 has 4 divisors (see below), whose sum is σ = 152880. Its totient is φ = 149568.

The previous prime is 151213. The next prime is 151237. The reversal of 151223 is 322151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 322151 = 277 ⋅1163.

It is a cyclic number.

It is not a de Polignac number, because 151223 - 2⁸ = 150967 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 151198 and 151207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683 + ... + 876.

It is an arithmetic number, because the mean of its divisors is an integer number (38220).

2¹⁵¹²²³ is an apocalyptic number.

151223 is a deficient number, since it is larger than the sum of its proper divisors (1657).

151223 is an equidigital number, since it uses as much as digits as its factorization.

151223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656.

The product of its digits is 60, while the sum is 14.

The square root of 151223 is about 388.8740155886. The cubic root of 151223 is about 53.2769412628.

Adding to 151223 its reverse (322151), we get a palindrome (473374).

The spelling of 151223 in words is "one hundred fifty-one thousand, two hundred twenty-three".