13151434 has 4 divisors (see below), whose sum is σ = 19727154. Its totient is φ = 6575716.

The previous prime is 13151431. The next prime is 13151443. The reversal of 13151434 is 43415131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12852225 + 299209 = 3585^2 + 547^2 .

It is not an unprimeable number, because it can be changed into a prime (13151431) 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 as a sum of consecutive naturals, namely, 3287857 + ... + 3287860.

Almost surely, 2^13151434 is an apocalyptic number.

13151434 is a deficient number, since it is larger than the sum of its proper divisors (6575720).

13151434 is an equidigital number, since it uses as much as digits as its factorization.

13151434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6575719.

The product of its digits is 720, while the sum is 22.

The square root of 13151434 is about 3626.4905900884. The cubic root of 13151434 is about 236.0429515811.

Adding to 13151434 its reverse (43415131), we get a palindrome (56566565).

The spelling of 13151434 in words is "thirteen million, one hundred fifty-one thousand, four hundred thirty-four".