149111243 has 8 divisors (see below), whose sum is σ = 156114000. Its totient is φ = 142232608.

The previous prime is 149111227. The next prime is 149111257. The reversal of 149111243 is 342111941.

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 149111243 - 2⁴ = 149111227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149111203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28568 + ... + 33381.

It is an arithmetic number, because the mean of its divisors is an integer number (19514250).

Almost surely, 2^149111243 is an apocalyptic number.

149111243 is a deficient number, since it is larger than the sum of its proper divisors (7002757).

149111243 is an equidigital number, since it uses as much as digits as its factorization.

149111243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62061.

The product of its digits is 864, while the sum is 26.

The square root of 149111243 is about 12211.1114563745. Note that the first 3 decimals coincide. The cubic root of 149111243 is about 530.2778215909.

The spelling of 149111243 in words is "one hundred forty-nine million, one hundred eleven thousand, two hundred forty-three".