405147197 has 16 divisors (see below), whose sum is σ = 515840640. Its totient is φ = 309500352.

The previous prime is 405147187. The next prime is 405147209. The reversal of 405147197 is 791741504.

It is not a de Polignac number, because 405147197 - 2⁴ = 405147181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 405147197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405147107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74123 + ... + 79400.

It is an arithmetic number, because the mean of its divisors is an integer number (32240040).

Almost surely, 2^405147197 is an apocalyptic number.

It is an amenable number.

405147197 is a deficient number, since it is larger than the sum of its proper divisors (110693443).

405147197 is a wasteful number, since it uses less digits than its factorization.

405147197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153572.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 405147197 is about 20128.2686041299. The cubic root of 405147197 is about 739.9532457678.

The spelling of 405147197 in words is "four hundred five million, one hundred forty-seven thousand, one hundred ninety-seven".