150306997 has 4 divisors (see below), whose sum is σ = 150334156. Its totient is φ = 150279840.

The previous prime is 150306983. The next prime is 150307009. The reversal of 150306997 is 799603051.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9979281 + 140327716 = 3159^2 + 11846^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150306997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150306917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1968 + ... + 17449.

It is an arithmetic number, because the mean of its divisors is an integer number (37583539).

Almost surely, 2^150306997 is an apocalyptic number.

It is an amenable number.

150306997 is a deficient number, since it is larger than the sum of its proper divisors (27159).

150306997 is an equidigital number, since it uses as much as digits as its factorization.

150306997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27158.

The product of its (nonzero) digits is 51030, while the sum is 40.

The square root of 150306997 is about 12259.9754078057. The cubic root of 150306997 is about 531.6915186849.

The spelling of 150306997 in words is "one hundred fifty million, three hundred six thousand, nine hundred ninety-seven".