13136740 has 24 divisors (see below), whose sum is σ = 27655992. Its totient is φ = 5241600.

The previous prime is 13136737. The next prime is 13136741. The reversal of 13136740 is 4763131.

It can be written as a sum of positive squares in 4 ways, for example, as 788544 + 12348196 = 888^2 + 3514^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13136741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13552 + ... + 14488.

It is an arithmetic number, because the mean of its divisors is an integer number (1152333).

Almost surely, 2^13136740 is an apocalyptic number.

13136740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13136740 is an abundant number, since it is smaller than the sum of its proper divisors (14519252).

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

13136740 is a wasteful number, since it uses less digits than its factorization.

13136740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647 (or 1645 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 13136740 is about 3624.4640983185. The cubic root of 13136740 is about 235.9550091387.

Adding to 13136740 its reverse (4763131), we get a palindrome (17899871).

The spelling of 13136740 in words is "thirteen million, one hundred thirty-six thousand, seven hundred forty".