431253197 has 4 divisors (see below), whose sum is σ = 450003360. Its totient is φ = 412503036.

The previous prime is 431253181. The next prime is 431253223. The reversal of 431253197 is 791352134.

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 431253197 - 2⁴ = 431253181 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 (431253107) 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, 9375047 + ... + 9375092.

It is an arithmetic number, because the mean of its divisors is an integer number (112500840).

Almost surely, 2^431253197 is an apocalyptic number.

It is an amenable number.

431253197 is a deficient number, since it is larger than the sum of its proper divisors (18750163).

431253197 is a wasteful number, since it uses less digits than its factorization.

431253197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18750162.

The product of its digits is 22680, while the sum is 35.

The square root of 431253197 is about 20766.6366318670. The cubic root of 431253197 is about 755.5167708953.

The spelling of 431253197 in words is "four hundred thirty-one million, two hundred fifty-three thousand, one hundred ninety-seven".