9870151 has 4 divisors (see below), whose sum is σ = 10299312. Its totient is φ = 9440992.

The previous prime is 9870143. The next prime is 9870163. The reversal of 9870151 is 1510789.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1510789 = 7 ⋅215827.

It is a cyclic number.

It is not a de Polignac number, because 9870151 - 2³ = 9870143 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9870451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 214546 + ... + 214591.

It is an arithmetic number, because the mean of its divisors is an integer number (2574828).

Almost surely, 2^9870151 is an apocalyptic number.

9870151 is a deficient number, since it is larger than the sum of its proper divisors (429161).

9870151 is a wasteful number, since it uses less digits than its factorization.

9870151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429160.

The product of its (nonzero) digits is 2520, while the sum is 31.

The square root of 9870151 is about 3141.6796463039. The cubic root of 9870151 is about 214.5068995087.

The spelling of 9870151 in words is "nine million, eight hundred seventy thousand, one hundred fifty-one".