431615413 has 2 divisors, whose sum is σ = 431615414. Its totient is φ = 431615412.

The previous prime is 431615389. The next prime is 431615477. The reversal of 431615413 is 314516134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 421768369 + 9847044 = 20537^2 + 3138^2 .

It is a cyclic number.

It is not a de Polignac number, because 431615413 - 2⁹ = 431614901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431615713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215807706 + 215807707.

It is an arithmetic number, because the mean of its divisors is an integer number (215807707).

Almost surely, 2^431615413 is an apocalyptic number.

It is an amenable number.

431615413 is a deficient number, since it is larger than the sum of its proper divisors (1).

431615413 is an equidigital number, since it uses as much as digits as its factorization.

431615413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 431615413 is about 20775.3559054953. The cubic root of 431615413 is about 755.7282349751.

The spelling of 431615413 in words is "four hundred thirty-one million, six hundred fifteen thousand, four hundred thirteen".