149045 has 8 divisors (see below), whose sum is σ = 192696. Its totient is φ = 110016.

The previous prime is 149033. The next prime is 149053. The reversal of 149045 is 540941.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49 + 148996 = 7^2 + 386^2 .

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 149045 - 2¹⁰ = 148021 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 149045.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 149045.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1082 + ... + 1211.

It is an arithmetic number, because the mean of its divisors is an integer number (24087).

2¹⁴⁹⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

149045 is a deficient number, since it is larger than the sum of its proper divisors (43651).

149045 is a wasteful number, since it uses less digits than its factorization.

149045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2311.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 149045 is about 386.0634662850. The cubic root of 149045 is about 53.0199284261.

Adding to 149045 its reverse (540941), we get a palindrome (689986).

The spelling of 149045 in words is "one hundred forty-nine thousand, forty-five".