13077530 has 8 divisors (see below), whose sum is σ = 23539572. Its totient is φ = 5231008.

The previous prime is 13077511. The next prime is 13077541. The reversal of 13077530 is 3577031.

Added to its reverse (3577031) it gives a square (16654561 = 4081²).

It can be written as a sum of positive squares in 2 ways, for example, as 13010449 + 67081 = 3607^2 + 259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13077530.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 653867 + ... + 653886.

Almost surely, 2^13077530 is an apocalyptic number.

13077530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13077530 is a deficient number, since it is larger than the sum of its proper divisors (10462042).

13077530 is a wasteful number, since it uses less digits than its factorization.

13077530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307760.

The product of its (nonzero) digits is 2205, while the sum is 26.

The square root of 13077530 is about 3616.2867696022. The cubic root of 13077530 is about 235.5999758831.

Adding to 13077530 its reverse (3577031), we get a square (16654561 = 4081²).

The spelling of 13077530 in words is "thirteen million, seventy-seven thousand, five hundred thirty".