15210000001 has 4 divisors (see below), whose sum is σ = 17382857152. Its totient is φ = 13037142852.

The previous prime is 15209999983. The next prime is 15210000007. The reversal of 15210000001 is 10000001251.

It is a happy number.

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 not a de Polignac number, because 15210000001 - 2¹⁹ = 15209475713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15210000007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1086428565 + ... + 1086428578.

It is an arithmetic number, because the mean of its divisors is an integer number (4345714288).

Almost surely, 2^15210000001 is an apocalyptic number.

It is an amenable number.

15210000001 is a deficient number, since it is larger than the sum of its proper divisors (2172857151).

15210000001 is an equidigital number, since it uses as much as digits as its factorization.

15210000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2172857150.

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

Adding to 15210000001 its reverse (10000001251), we get a palindrome (25210001252).

The spelling of 15210000001 in words is "fifteen billion, two hundred ten million, one", and thus it is an aban number.