431967149 has 4 divisors (see below), whose sum is σ = 432199164. Its totient is φ = 431735136.

The previous prime is 431967097. The next prime is 431967233. The reversal of 431967149 is 941769134.

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 275892100 + 156075049 = 16610^2 + 12493^2 .

It is a cyclic number.

It is not a de Polignac number, because 431967149 - 2⁸ = 431966893 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 (431967049) 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 in 3 ways as a sum of consecutive naturals, for example, 113192 + ... + 116945.

It is an arithmetic number, because the mean of its divisors is an integer number (108049791).

Almost surely, 2^431967149 is an apocalyptic number.

It is an amenable number.

431967149 is a deficient number, since it is larger than the sum of its proper divisors (232015).

431967149 is a wasteful number, since it uses less digits than its factorization.

431967149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232014.

The product of its digits is 163296, while the sum is 44.

The square root of 431967149 is about 20783.8194035649. The cubic root of 431967149 is about 755.9334675686.

The spelling of 431967149 in words is "four hundred thirty-one million, nine hundred sixty-seven thousand, one hundred forty-nine".