149023 has 8 divisors (see below), whose sum is σ = 173600. Its totient is φ = 125280.
The previous prime is 149021. The next prime is 149027. The reversal of 149023 is 320941.
149023 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 a cyclic number.
It is not a de Polignac number, because 149023 - 21 = 149021 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (149021) 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, 253 + ... + 601.
It is an arithmetic number, because the mean of its divisors is an integer number (21700).
2149023 is an apocalyptic number.
149023 is a deficient number, since it is larger than the sum of its proper divisors (24577).
149023 is an equidigital number, since it uses as much as digits as its factorization.
149023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 417.
The product of its (nonzero) digits is 216, while the sum is 19.
The square root of 149023 is about 386.0349725090. The cubic root of 149023 is about 53.0173196036.
Adding to 149023 its reverse (320941), we get a palindrome (469964).
The spelling of 149023 in words is "one hundred forty-nine thousand, twenty-three".
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