149623 has 2 divisors, whose sum is σ = 149624. Its totient is φ = 149622.

The previous prime is 149603. The next prime is 149627. The reversal of 149623 is 326941.

149623 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (326941) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 149623 - 2⁹ = 149111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74811 + 74812.

It is an arithmetic number, because the mean of its divisors is an integer number (74812).

2¹⁴⁹⁶²³ is an apocalyptic number.

149623 is a deficient number, since it is larger than the sum of its proper divisors (1).

149623 is an equidigital number, since it uses as much as digits as its factorization.

149623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 25.

The square root of 149623 is about 386.8113235157. The cubic root of 149623 is about 53.0883775277.

The spelling of 149623 in words is "one hundred forty-nine thousand, six hundred twenty-three".