431336149 has 4 divisors (see below), whose sum is σ = 431566380. Its totient is φ = 431105920.

The previous prime is 431336131. The next prime is 431336173. The reversal of 431336149 is 941633134.

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

It can be written as a sum of positive squares in 2 ways, for example, as 247055524 + 184280625 = 15718^2 + 13575^2 .

It is a cyclic number.

It is not a de Polignac number, because 431336149 - 2¹⁵ = 431303381 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 (431331149) 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, 112282 + ... + 116059.

It is an arithmetic number, because the mean of its divisors is an integer number (107891595).

Almost surely, 2^431336149 is an apocalyptic number.

It is an amenable number.

431336149 is a deficient number, since it is larger than the sum of its proper divisors (230231).

431336149 is a wasteful number, since it uses less digits than its factorization.

431336149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230230.

The product of its digits is 23328, while the sum is 34.

The square root of 431336149 is about 20768.6337778873. The cubic root of 431336149 is about 755.5652092681.

The spelling of 431336149 in words is "four hundred thirty-one million, three hundred thirty-six thousand, one hundred forty-nine".