2151135 has 24 divisors (see below), whose sum is σ = 4261920. Its totient is φ = 983232.

The previous prime is 2151119. The next prime is 2151137. The reversal of 2151135 is 5311512.

It is not a de Polignac number, because 2151135 - 2⁴ = 2151119 is a prime.

2151135 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2151137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3100 + ... + 3729.

It is an arithmetic number, because the mean of its divisors is an integer number (177580).

2^2151135 is an apocalyptic number.

2151135 is a deficient number, since it is larger than the sum of its proper divisors (2110785).

2151135 is a wasteful number, since it uses less digits than its factorization.

2151135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6847 (or 6844 counting only the distinct ones).

The product of its digits is 150, while the sum is 18.

The square root of 2151135 is about 1466.6748105835. The cubic root of 2151135 is about 129.0889957367.

Adding to 2151135 its reverse (5311512), we get a palindrome (7462647).

The spelling of 2151135 in words is "two million, one hundred fifty-one thousand, one hundred thirty-five".