149183843 has 4 divisors (see below), whose sum is σ = 150504168. Its totient is φ = 147863520.

The previous prime is 149183833. The next prime is 149183849. The reversal of 149183843 is 348381941.

149183843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348381941 = 4259 ⋅81799.

It is a cyclic number.

It is not a de Polignac number, because 149183843 - 2⁶ = 149183779 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 149183843.

It is not an unprimeable number, because it can be changed into a prime (149183849) 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, 659993 + ... + 660218.

It is an arithmetic number, because the mean of its divisors is an integer number (37626042).

Almost surely, 2^149183843 is an apocalyptic number.

149183843 is a deficient number, since it is larger than the sum of its proper divisors (1320325).

149183843 is a wasteful number, since it uses less digits than its factorization.

149183843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320324.

The product of its digits is 82944, while the sum is 41.

The square root of 149183843 is about 12214.0837969944. The cubic root of 149183843 is about 530.3638690338.

The spelling of 149183843 in words is "one hundred forty-nine million, one hundred eighty-three thousand, eight hundred forty-three".