13151730 has 16 divisors (see below), whose sum is σ = 31564224. Its totient is φ = 3507120.

The previous prime is 13151729. The next prime is 13151741. The reversal of 13151730 is 3715131.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13151697 and 13151706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219166 + ... + 219225.

It is an arithmetic number, because the mean of its divisors is an integer number (1972764).

Almost surely, 2^13151730 is an apocalyptic number.

13151730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13151730 is an abundant number, since it is smaller than the sum of its proper divisors (18412494).

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

13151730 is a wasteful number, since it uses less digits than its factorization.

13151730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438401.

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 13151730 is about 3626.5314006637. The cubic root of 13151730 is about 236.0447224447.

Adding to 13151730 its reverse (3715131), we get a palindrome (16866861).

The spelling of 13151730 in words is "thirteen million, one hundred fifty-one thousand, seven hundred thirty".