210102045 has 8 divisors (see below), whose sum is σ = 336163296. Its totient is φ = 112054416.

The previous prime is 210102041. The next prime is 210102047. The reversal of 210102045 is 540201012.

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

It is not a de Polignac number, because 210102045 - 2² = 210102041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 14006803 = 210102045 / (2 + 1 + 0 + 1 + 0 + 2 + 0 + 4 + 5).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210102041) 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, 7003387 + ... + 7003416.

It is an arithmetic number, because the mean of its divisors is an integer number (42020412).

Almost surely, 2^210102045 is an apocalyptic number.

It is an amenable number.

210102045 is a deficient number, since it is larger than the sum of its proper divisors (126061251).

210102045 is a wasteful number, since it uses less digits than its factorization.

210102045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14006811.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 210102045 is about 14494.8972055686. The cubic root of 210102045 is about 594.4884570693.

Adding to 210102045 its reverse (540201012), we get a palindrome (750303057).

The spelling of 210102045 in words is "two hundred ten million, one hundred two thousand, forty-five".