210001145 has 8 divisors (see below), whose sum is σ = 252089280. Its totient is φ = 167942320.

The previous prime is 210001133. The next prime is 210001147. The reversal of 210001145 is 541100012.

210001145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 210001145 - 2⁶ = 210001081 is a prime.

It is a super-2 number, since 2×210001145² = 88200961802622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (210001147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14186 + ... + 24924.

It is an arithmetic number, because the mean of its divisors is an integer number (31511160).

Almost surely, 2^210001145 is an apocalyptic number.

It is an amenable number.

210001145 is a deficient number, since it is larger than the sum of its proper divisors (42088135).

210001145 is a wasteful number, since it uses less digits than its factorization.

210001145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14655.

The product of its (nonzero) digits is 40, while the sum is 14.

The square root of 210001145 is about 14491.4162523889. The cubic root of 210001145 is about 594.3932755586.

Adding to 210001145 its reverse (541100012), we get a palindrome (751101157).

The spelling of 210001145 in words is "two hundred ten million, one thousand, one hundred forty-five".