2135493 has 6 divisors (see below), whose sum is σ = 3084614. Its totient is φ = 1423656.

The previous prime is 2135479. The next prime is 2135503. The reversal of 2135493 is 3945312.

It can be written as a sum of positive squares in only one way, i.e., 1292769 + 842724 = 1137^2 + 918^2 .

It is not a de Polignac number, because 2135493 - 2¹⁶ = 2069957 is a prime.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 3⁷ + 5 + 4⁷ + 9² + 3⁹ .

It is a Duffinian number.

2135493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135453) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118630 + ... + 118647.

2^2135493 is an apocalyptic number.

It is an amenable number.

2135493 is a deficient number, since it is larger than the sum of its proper divisors (949121).

2135493 is a wasteful number, since it uses less digits than its factorization.

2135493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237283 (or 237280 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 2135493 is about 1461.3326110096. The cubic root of 2135493 is about 128.7753436143.

It can be divided in two parts, 2135 and 493, that added together give a triangular number (2628 = T₇₂).

The spelling of 2135493 in words is "two million, one hundred thirty-five thousand, four hundred ninety-three".