149683994 has 8 divisors (see below), whose sum is σ = 224584788. Its totient is φ = 74822400.

The previous prime is 149683991. The next prime is 149683999. The reversal of 149683994 is 499386941.

It can be written as a sum of positive squares in 2 ways, for example, as 130804969 + 18879025 = 11437^2 + 4345^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (149683991) 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, 3194 + ... + 17594.

Almost surely, 2^149683994 is an apocalyptic number.

149683994 is a deficient number, since it is larger than the sum of its proper divisors (74900794).

149683994 is a wasteful number, since it uses less digits than its factorization.

149683994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19600.

The product of its digits is 1679616, while the sum is 53.

The square root of 149683994 is about 12234.5410212235. The cubic root of 149683994 is about 530.9559039519.

The spelling of 149683994 in words is "one hundred forty-nine million, six hundred eighty-three thousand, nine hundred ninety-four".