650149501 has 2 divisors, whose sum is σ = 650149502. Its totient is φ = 650149500.

The previous prime is 650149483. The next prime is 650149531. The reversal of 650149501 is 105941056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 549949401 + 100200100 = 23451^2 + 10010^2 .

It is a cyclic number.

It is not a de Polignac number, because 650149501 - 2⁵ = 650149469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (650149531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325074750 + 325074751.

It is an arithmetic number, because the mean of its divisors is an integer number (325074751).

Almost surely, 2^650149501 is an apocalyptic number.

It is an amenable number.

650149501 is a deficient number, since it is larger than the sum of its proper divisors (1).

650149501 is an equidigital number, since it uses as much as digits as its factorization.

650149501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 650149501 is about 25498.0293552267. The cubic root of 650149501 is about 866.3055123589.

The spelling of 650149501 in words is "six hundred fifty million, one hundred forty-nine thousand, five hundred one".