447155131 has 8 divisors (see below), whose sum is σ = 475865280. Its totient is φ = 418712448.

The previous prime is 447155123. The next prime is 447155141. The reversal of 447155131 is 131551744.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 447155131 - 2³ = 447155123 is a prime.

It is a super-2 number, since 2×447155131² = 399895422359254322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 447155093 and 447155102.

It is not an unprimeable number, because it can be changed into a prime (447155141) 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 7 ways as a sum of consecutive naturals, for example, 63411 + ... + 70108.

It is an arithmetic number, because the mean of its divisors is an integer number (59483160).

Almost surely, 2^447155131 is an apocalyptic number.

447155131 is a deficient number, since it is larger than the sum of its proper divisors (28710149).

447155131 is a wasteful number, since it uses less digits than its factorization.

447155131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133733.

The product of its digits is 8400, while the sum is 31.

The square root of 447155131 is about 21146.0429158744. The cubic root of 447155131 is about 764.6911655832.

The spelling of 447155131 in words is "four hundred forty-seven million, one hundred fifty-five thousand, one hundred thirty-one".