2870129 has 4 divisors (see below), whose sum is σ = 2874480. Its totient is φ = 2865780.

The previous prime is 2870113. The next prime is 2870171. The reversal of 2870129 is 9210782.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2870129 - 2⁴ = 2870113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2870429) 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, 959 + ... + 2580.

It is an arithmetic number, because the mean of its divisors is an integer number (718620).

2^2870129 is an apocalyptic number.

It is an amenable number.

2870129 is a deficient number, since it is larger than the sum of its proper divisors (4351).

2870129 is an equidigital number, since it uses as much as digits as its factorization.

2870129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4350.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 2870129 is about 1694.1455073281. The cubic root of 2870129 is about 142.1129993887.

It can be divided in two parts, 2870 and 129, that multiplied together give a triangular number (370230 = T₈₆₀).

The spelling of 2870129 in words is "two million, eight hundred seventy thousand, one hundred twenty-nine".