2154135 has 8 divisors (see below), whose sum is σ = 3446640. Its totient is φ = 1148864.

The previous prime is 2154127. The next prime is 2154137. The reversal of 2154135 is 5314512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2154135 - 2³ = 2154127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2154137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71790 + ... + 71819.

It is an arithmetic number, because the mean of its divisors is an integer number (430830).

2^2154135 is an apocalyptic number.

2154135 is a deficient number, since it is larger than the sum of its proper divisors (1292505).

2154135 is a wasteful number, since it uses less digits than its factorization.

2154135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143617.

The product of its digits is 600, while the sum is 21.

The square root of 2154135 is about 1467.6971758507. The cubic root of 2154135 is about 129.1489775753.

Adding to 2154135 its reverse (5314512), we get a palindrome (7468647).

The spelling of 2154135 in words is "two million, one hundred fifty-four thousand, one hundred thirty-five".