150451218197 has 4 divisors (see below), whose sum is σ = 171944249376. Its totient is φ = 128958187020.

The previous prime is 150451218191. The next prime is 150451218209. The reversal of 150451218197 is 791812154051.

150451218197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150451218197 is a prime.

It is a super-2 number, since 2×150451218197² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150451218191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10746515579 + ... + 10746515592.

It is an arithmetic number, because the mean of its divisors is an integer number (42986062344).

Almost surely, 2^150451218197 is an apocalyptic number.

It is an amenable number.

150451218197 is a deficient number, since it is larger than the sum of its proper divisors (21493031179).

150451218197 is an equidigital number, since it uses as much as digits as its factorization.

150451218197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21493031178.

The product of its (nonzero) digits is 100800, while the sum is 44.

The spelling of 150451218197 in words is "one hundred fifty billion, four hundred fifty-one million, two hundred eighteen thousand, one hundred ninety-seven".