150665401 has 2 divisors, whose sum is σ = 150665402. Its totient is φ = 150665400.

The previous prime is 150665399. The next prime is 150665453. The reversal of 150665401 is 104566051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137452176 + 13213225 = 11724^2 + 3635^2 .

It is an emirp because it is prime and its reverse (104566051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150665401 - 2¹ = 150665399 is a prime.

Together with 150665399, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 150665401.

It is not a weakly prime, because it can be changed into another prime (150665461) 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, 75332700 + 75332701.

It is an arithmetic number, because the mean of its divisors is an integer number (75332701).

Almost surely, 2^150665401 is an apocalyptic number.

It is an amenable number.

150665401 is a deficient number, since it is larger than the sum of its proper divisors (1).

150665401 is an equidigital number, since it uses as much as digits as its factorization.

150665401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 150665401 is about 12274.5835367234. The cubic root of 150665401 is about 532.1137857977.

The spelling of 150665401 in words is "one hundred fifty million, six hundred sixty-five thousand, four hundred one".