149840111 has 4 divisors (see below), whose sum is σ = 150322224. Its totient is φ = 149358000.

The previous prime is 149840039. The next prime is 149840113. The reversal of 149840111 is 111048941.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111048941 = 3301 ⋅33641.

It is a cyclic number.

It is not a de Polignac number, because 149840111 - 2¹⁰ = 149839087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149840113) 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, 240590 + ... + 241211.

It is an arithmetic number, because the mean of its divisors is an integer number (37580556).

Almost surely, 2^149840111 is an apocalyptic number.

149840111 is a deficient number, since it is larger than the sum of its proper divisors (482113).

149840111 is an equidigital number, since it uses as much as digits as its factorization.

149840111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482112.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 149840111 is about 12240.9195324534. The cubic root of 149840111 is about 531.1404314565.

It can be divided in two parts, 1498401 and 11, that multiplied together give a triangular number (16482411 = T₅₇₄₁).

The spelling of 149840111 in words is "one hundred forty-nine million, eight hundred forty thousand, one hundred eleven".