149666684 has 6 divisors (see below), whose sum is σ = 261916704. Its totient is φ = 74833340.

The previous prime is 149666683. The next prime is 149666689. The reversal of 149666684 is 486666941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149666683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18708332 + ... + 18708339.

It is an arithmetic number, because the mean of its divisors is an integer number (43652784).

Almost surely, 2^149666684 is an apocalyptic number.

It is an amenable number.

149666684 is a deficient number, since it is larger than the sum of its proper divisors (112250020).

149666684 is a wasteful number, since it uses less digits than its factorization.

149666684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37416675 (or 37416673 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 50.

The square root of 149666684 is about 12233.8335774196. The cubic root of 149666684 is about 530.9354359407.

The spelling of 149666684 in words is "one hundred forty-nine million, six hundred sixty-six thousand, six hundred eighty-four".