149845 has 8 divisors (see below), whose sum is σ = 187776. Its totient is φ = 114576.

The previous prime is 149839. The next prime is 149861. The reversal of 149845 is 548941.

It is a happy number.

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 149845 - 2³ = 149837 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 537 + ... + 766.

It is an arithmetic number, because the mean of its divisors is an integer number (23472).

2¹⁴⁹⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

149845 is a deficient number, since it is larger than the sum of its proper divisors (37931).

149845 is a wasteful number, since it uses less digits than its factorization.

149845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331.

The product of its digits is 5760, while the sum is 31.

The square root of 149845 is about 387.0981787609. The cubic root of 149845 is about 53.1146208097.

The spelling of 149845 in words is "one hundred forty-nine thousand, eight hundred forty-five".