149773 has 8 divisors (see below), whose sum is σ = 165816. Its totient is φ = 134400.

The previous prime is 149771. The next prime is 149791. The reversal of 149773 is 377941.

It can be written as a sum of positive squares in 4 ways, for example, as 4 + 149769 = 2^2 + 387^2 .

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 149773 - 2¹ = 149771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393 + ... + 673.

It is an arithmetic number, because the mean of its divisors is an integer number (20727).

2¹⁴⁹⁷⁷³ is an apocalyptic number.

149773 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

149773 is a deficient number, since it is larger than the sum of its proper divisors (16043).

149773 is a wasteful number, since it uses less digits than its factorization.

149773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335.

The product of its digits is 5292, while the sum is 31.

The square root of 149773 is about 387.0051679242. The cubic root of 149773 is about 53.1061123167.

The spelling of 149773 in words is "one hundred forty-nine thousand, seven hundred seventy-three".