650149994 has 8 divisors (see below), whose sum is σ = 1050242340. Its totient is φ = 300069216.

The previous prime is 650149991. The next prime is 650150003. The reversal of 650149994 is 499941056.

It can be written as a sum of positive squares in 2 ways, for example, as 592192225 + 57957769 = 24335^2 + 7613^2 .

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

It is not an unprimeable number, because it can be changed into a prime (650149991) 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, 12502859 + ... + 12502910.

Almost surely, 2^650149994 is an apocalyptic number.

650149994 is a deficient number, since it is larger than the sum of its proper divisors (400092346).

650149994 is a wasteful number, since it uses less digits than its factorization.

650149994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25005784.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 650149994 is about 25498.0390226386. The cubic root of 650149994 is about 866.3057313283.

The spelling of 650149994 in words is "six hundred fifty million, one hundred forty-nine thousand, nine hundred ninety-four".