149930666 has 4 divisors (see below), whose sum is σ = 224896002. Its totient is φ = 74965332.

The previous prime is 149930659. The next prime is 149930681. The reversal of 149930666 is 666039941.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 105987025 + 43943641 = 10295^2 + 6629^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37482665 + ... + 37482668.

Almost surely, 2^149930666 is an apocalyptic number.

149930666 is a deficient number, since it is larger than the sum of its proper divisors (74965336).

149930666 is an equidigital number, since it uses as much as digits as its factorization.

149930666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74965335.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 149930666 is about 12244.6178380544. The cubic root of 149930666 is about 531.2474071200.

The spelling of 149930666 in words is "one hundred forty-nine million, nine hundred thirty thousand, six hundred sixty-six".