180135413 has 4 divisors (see below), whose sum is σ = 180207840. Its totient is φ = 180062988.

The previous prime is 180135407. The next prime is 180135433. The reversal of 180135413 is 314531081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 180135413 - 2²⁶ = 113026549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180135433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32345 + ... + 37502.

It is an arithmetic number, because the mean of its divisors is an integer number (45051960).

Almost surely, 2^180135413 is an apocalyptic number.

It is an amenable number.

180135413 is a deficient number, since it is larger than the sum of its proper divisors (72427).

180135413 is an equidigital number, since it uses as much as digits as its factorization.

180135413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72426.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 180135413 is about 13421.4534607843. The cubic root of 180135413 is about 564.7631690737.

Adding to 180135413 its reverse (314531081), we get a palindrome (494666494).

The spelling of 180135413 in words is "one hundred eighty million, one hundred thirty-five thousand, four hundred thirteen".