20150002 has 8 divisors (see below), whose sum is σ = 30400236. Its totient is φ = 10016592.

The previous prime is 20149973. The next prime is 20150021. The reversal of 20150002 is 20005102.

It can be written as a sum of positive squares in 2 ways, for example, as 17297281 + 2852721 = 4159^2 + 1689^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28773 + ... + 29464.

Almost surely, 2^20150002 is an apocalyptic number.

20150002 is a deficient number, since it is larger than the sum of its proper divisors (10250234).

20150002 is a wasteful number, since it uses less digits than its factorization.

20150002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58412.

The product of its (nonzero) digits is 20, while the sum is 10.

The square root of 20150002 is about 4488.8753602656. The cubic root of 20150002 is about 272.1186855894.

Adding to 20150002 its reverse (20005102), we get a palindrome (40155104).

The spelling of 20150002 in words is "twenty million, one hundred fifty thousand, two".