149738666 has 16 divisors (see below), whose sum is σ = 280031040. Its totient is φ = 58339680.

The previous prime is 149738651. The next prime is 149738681. The reversal of 149738666 is 666837941.

149738666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (149738651) and next prime (149738681).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486011 + ... + 486318.

It is an arithmetic number, because the mean of its divisors is an integer number (17501940).

Almost surely, 2^149738666 is an apocalyptic number.

149738666 is a deficient number, since it is larger than the sum of its proper divisors (130292374).

149738666 is a wasteful number, since it uses less digits than its factorization.

149738666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972349.

The product of its digits is 1306368, while the sum is 50.

The square root of 149738666 is about 12236.7751470720. The cubic root of 149738666 is about 531.0205398713.

The spelling of 149738666 in words is "one hundred forty-nine million, seven hundred thirty-eight thousand, six hundred sixty-six".