149849 has 4 divisors (see below), whose sum is σ = 171264. Its totient is φ = 128436.

The previous prime is 149839. The next prime is 149861. The reversal of 149849 is 948941.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 149849 - 2¹² = 145753 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10697 + ... + 10710.

It is an arithmetic number, because the mean of its divisors is an integer number (42816).

2¹⁴⁹⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

149849 is a deficient number, since it is larger than the sum of its proper divisors (21415).

149849 is an equidigital number, since it uses as much as digits as its factorization.

149849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21414.

The product of its digits is 10368, while the sum is 35.

The square root of 149849 is about 387.1033453743. The cubic root of 149849 is about 53.1150934238.

The spelling of 149849 in words is "one hundred forty-nine thousand, eight hundred forty-nine".