2136245 has 4 divisors (see below), whose sum is σ = 2563500. Its totient is φ = 1708992.

The previous prime is 2136221. The next prime is 2136247. The reversal of 2136245 is 5426312.

2136245 = 1033² + 1034².

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 1067089 + 1069156 = 1033^2 + 1034^2 .

It is a cyclic number.

It is not a de Polignac number, because 2136245 - 2⁶ = 2136181 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 1 + 3⁷ + 6² + 2²¹ + 4⁶ + 5 .

It is a self number, because there is not a number n which added to its sum of digits gives 2136245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2136247) 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, 213620 + ... + 213629.

It is an arithmetic number, because the mean of its divisors is an integer number (640875).

2^2136245 is an apocalyptic number.

2136245 is the 1034-th centered square number.

It is an amenable number.

2136245 is a deficient number, since it is larger than the sum of its proper divisors (427255).

2136245 is an equidigital number, since it uses as much as digits as its factorization.

2136245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427254.

The product of its digits is 1440, while the sum is 23.

The square root of 2136245 is about 1461.5898877592. The cubic root of 2136245 is about 128.7904576409.

The spelling of 2136245 in words is "two million, one hundred thirty-six thousand, two hundred forty-five".