210001615145 has 32 divisors (see below), whose sum is σ = 315458841600. Its totient is φ = 130856979456.

The previous prime is 210001615097. The next prime is 210001615151. The reversal of 210001615145 is 541516100012.

It is not a de Polignac number, because 210001615145 - 2¹⁴ = 210001598761 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6067985 + ... + 6102494.

It is an arithmetic number, because the mean of its divisors is an integer number (9858088800).

Almost surely, 2^210001615145 is an apocalyptic number.

It is an amenable number.

210001615145 is a deficient number, since it is larger than the sum of its proper divisors (105457226455).

210001615145 is a wasteful number, since it uses less digits than its factorization.

210001615145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12170537.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 210001615145 its reverse (541516100012), we get a palindrome (751517715157).

The spelling of 210001615145 in words is "two hundred ten billion, one million, six hundred fifteen thousand, one hundred forty-five".