2135489 has 4 divisors (see below), whose sum is σ = 2261124. Its totient is φ = 2009856.

The previous prime is 2135479. The next prime is 2135503. The reversal of 2135489 is 9845312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 824464 + 1311025 = 908^2 + 1145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135489 - 2¹⁶ = 2069953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2135479) 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, 62792 + ... + 62825.

It is an arithmetic number, because the mean of its divisors is an integer number (565281).

2^2135489 is an apocalyptic number.

It is an amenable number.

2135489 is a deficient number, since it is larger than the sum of its proper divisors (125635).

2135489 is a wasteful number, since it uses less digits than its factorization.

2135489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125634.

The product of its digits is 8640, while the sum is 32.

The square root of 2135489 is about 1461.3312423951. The cubic root of 2135489 is about 128.7752632111.

The spelling of 2135489 in words is "two million, one hundred thirty-five thousand, four hundred eighty-nine".