2115151 has 4 divisors (see below), whose sum is σ = 2118904. Its totient is φ = 2111400.

The previous prime is 2115133. The next prime is 2115181. The reversal of 2115151 is 1515112.

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 2115151 - 2¹³ = 2106959 is a prime.

It is a Duffinian number.

2115151 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115101) 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, 840 + ... + 2221.

It is an arithmetic number, because the mean of its divisors is an integer number (529726).

2^2115151 is an apocalyptic number.

2115151 is a deficient number, since it is larger than the sum of its proper divisors (3753).

2115151 is an equidigital number, since it uses as much as digits as its factorization.

2115151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3752.

The product of its digits is 50, while the sum is 16.

The square root of 2115151 is about 1454.3558711677. The cubic root of 2115151 is about 128.3651479377.

It can be divided in two parts, 21151 and 51, that multiplied together give a palindrome (1078701).

The spelling of 2115151 in words is "two million, one hundred fifteen thousand, one hundred fifty-one".