431149 has 4 divisors (see below), whose sum is σ = 433180. Its totient is φ = 429120.

The previous prime is 431147. The next prime is 431153. The reversal of 431149 is 941134.

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 372100 + 59049 = 610^2 + 243^2 .

It is a cyclic number.

It is not a de Polignac number, because 431149 - 2¹ = 431147 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654 + ... + 1135.

It is an arithmetic number, because the mean of its divisors is an integer number (108295).

2⁴³¹¹⁴⁹ is an apocalyptic number.

It is an amenable number.

431149 is a deficient number, since it is larger than the sum of its proper divisors (2031).

431149 is a wasteful number, since it uses less digits than its factorization.

431149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030.

The product of its digits is 432, while the sum is 22.

The square root of 431149 is about 656.6193722394. The cubic root of 431149 is about 75.5455918073.

The spelling of 431149 in words is "four hundred thirty-one thousand, one hundred forty-nine".