147431 has 4 divisors (see below), whose sum is σ = 148200. Its totient is φ = 146664.

The previous prime is 147419. The next prime is 147449. The reversal of 147431 is 134741.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 147431 - 2¹⁰ = 146407 is a prime.

It is a super-2 number, since 2×147431² = 43471799522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 147431.

It is not an unprimeable number, because it can be changed into a prime (147401) 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 3 ways as a sum of consecutive naturals, for example, 185 + ... + 573.

It is an arithmetic number, because the mean of its divisors is an integer number (37050).

2¹⁴⁷⁴³¹ is an apocalyptic number.

147431 is a deficient number, since it is larger than the sum of its proper divisors (769).

147431 is an equidigital number, since it uses as much as digits as its factorization.

147431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768.

The product of its digits is 336, while the sum is 20.

The square root of 147431 is about 383.9674465368. The cubic root of 147431 is about 52.8278501299.

The spelling of 147431 in words is "one hundred forty-seven thousand, four hundred thirty-one".