150002001 has 12 divisors (see below), whose sum is σ = 216896628. Its totient is φ = 99896544.

The previous prime is 150001997. The next prime is 150002003. The reversal of 150002001 is 100200051.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 57380625 + 92621376 = 7575^2 + 9624^2 .

It is not a de Polignac number, because 150002001 - 2² = 150001997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (150002003) 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 11 ways as a sum of consecutive naturals, for example, 891 + ... + 17343.

It is an arithmetic number, because the mean of its divisors is an integer number (18074719).

Almost surely, 2^150002001 is an apocalyptic number.

It is an amenable number.

150002001 is a deficient number, since it is larger than the sum of its proper divisors (66894627).

150002001 is a wasteful number, since it uses less digits than its factorization.

150002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17472 (or 17469 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 150002001 is about 12247.5304041264. The cubic root of 150002001 is about 531.3316472250.

Adding to 150002001 its reverse (100200051), we get a palindrome (250202052).

The spelling of 150002001 in words is "one hundred fifty million, two thousand, one".