213102151 has 4 divisors (see below), whose sum is σ = 214635400. Its totient is φ = 211568904.

The previous prime is 213102139. The next prime is 213102161. The reversal of 213102151 is 151201312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213102151 - 2¹⁷ = 212971079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213102161) 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, 766416 + ... + 766693.

It is an arithmetic number, because the mean of its divisors is an integer number (53658850).

Almost surely, 2^213102151 is an apocalyptic number.

213102151 is a deficient number, since it is larger than the sum of its proper divisors (1533249).

213102151 is a wasteful number, since it uses less digits than its factorization.

213102151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533248.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 213102151 is about 14598.0187354312. The cubic root of 213102151 is about 597.3047170273.

Adding to 213102151 its reverse (151201312), we get a palindrome (364303463).

The spelling of 213102151 in words is "two hundred thirteen million, one hundred two thousand, one hundred fifty-one".