149223223 has 2 divisors, whose sum is σ = 149223224. Its totient is φ = 149223222.

The previous prime is 149223211. The next prime is 149223227. The reversal of 149223223 is 322322941.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-149223223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 149223191 and 149223200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149223227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74611611 + 74611612.

It is an arithmetic number, because the mean of its divisors is an integer number (74611612).

Almost surely, 2^149223223 is an apocalyptic number.

149223223 is a deficient number, since it is larger than the sum of its proper divisors (1).

149223223 is an equidigital number, since it uses as much as digits as its factorization.

149223223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 149223223 is about 12215.6957640570. The cubic root of 149223223 is about 530.4105315750.

It can be divided in two parts, 14922 and 3223, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 149223223 in words is "one hundred forty-nine million, two hundred twenty-three thousand, two hundred twenty-three".