150666101 has 4 divisors (see below), whose sum is σ = 150821292. Its totient is φ = 150510912.

The previous prime is 150666091. The next prime is 150666133. The reversal of 150666101 is 101666051.

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 96628900 + 54037201 = 9830^2 + 7351^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150666101 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 (150666001) 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, 76130 + ... + 78083.

It is an arithmetic number, because the mean of its divisors is an integer number (37705323).

Almost surely, 2^150666101 is an apocalyptic number.

It is an amenable number.

150666101 is a deficient number, since it is larger than the sum of its proper divisors (155191).

150666101 is an equidigital number, since it uses as much as digits as its factorization.

150666101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155190.

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 150666101 is about 12274.6120508959. The cubic root of 150666101 is about 532.1146098733.

Subtracting from 150666101 its reverse (101666051), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 150666101 in words is "one hundred fifty million, six hundred sixty-six thousand, one hundred one".