147131 has 4 divisors (see below), whose sum is σ = 153552. Its totient is φ = 140712.

The previous prime is 147107. The next prime is 147137. The reversal of 147131 is 131741.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131741 = 47 ⋅2803.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147131 is a prime.

It is a super-2 number, since 2×147131² = 43295062322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147137) 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, 3176 + ... + 3221.

It is an arithmetic number, because the mean of its divisors is an integer number (38388).

2¹⁴⁷¹³¹ is an apocalyptic number.

147131 is a deficient number, since it is larger than the sum of its proper divisors (6421).

147131 is an equidigital number, since it uses as much as digits as its factorization.

147131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6420.

The product of its digits is 84, while the sum is 17.

The square root of 147131 is about 383.5765894838. The cubic root of 147131 is about 52.7919935442.

Adding to 147131 its reverse (131741), we get a palindrome (278872).

The spelling of 147131 in words is "one hundred forty-seven thousand, one hundred thirty-one".