149842243 has 4 divisors (see below), whose sum is σ = 150936120. Its totient is φ = 148748368.

The previous prime is 149842211. The next prime is 149842261. The reversal of 149842243 is 342248941.

149842243 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.

It is a cyclic number.

It is not a de Polignac number, because 149842243 - 2⁵ = 149842211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149842943) 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, 546733 + ... + 547006.

It is an arithmetic number, because the mean of its divisors is an integer number (37734030).

Almost surely, 2^149842243 is an apocalyptic number.

149842243 is a deficient number, since it is larger than the sum of its proper divisors (1093877).

149842243 is a wasteful number, since it uses less digits than its factorization.

149842243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093876.

The product of its digits is 55296, while the sum is 37.

The square root of 149842243 is about 12241.0066171047. The cubic root of 149842243 is about 531.1429505550.

The spelling of 149842243 in words is "one hundred forty-nine million, eight hundred forty-two thousand, two hundred forty-three".