2645136 has 100 divisors (see below), whose sum is σ = 8297212. Its totient is φ = 808704.

The previous prime is 2645131. The next prime is 2645141. The reversal of 2645136 is 6315462.

2645136 is a `hidden beast` number, since 2 + 645 + 13 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (2645131) and next prime (2645141).

It can be written as a sum of positive squares in 2 ways, for example, as 571536 + 2073600 = 756^2 + 1440^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2645131) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16770 + ... + 16926.

2^2645136 is an apocalyptic number.

2645136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2645136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4148606).

2645136 is an abundant number, since it is smaller than the sum of its proper divisors (5652076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2645136 is a wasteful number, since it uses less digits than its factorization.

2645136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 175 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2645136 is about 1626.3874077230. The cubic root of 2645136 is about 138.2980326370.

The spelling of 2645136 in words is "two million, six hundred forty-five thousand, one hundred thirty-six".