126471 has 4 divisors (see below), whose sum is σ = 168632. Its totient is φ = 84312.

The previous prime is 126461. The next prime is 126473. The reversal of 126471 is 174621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174621 = 3 ⋅58207.

It is not a de Polignac number, because 126471 - 2⁹ = 125959 is a prime.

It is a super-3 number, since 3×126471³ = 6068678245155333, which contains 333 as substring.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126473) 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, 21076 + ... + 21081.

It is an arithmetic number, because the mean of its divisors is an integer number (42158).

2¹²⁶⁴⁷¹ is an apocalyptic number.

126471 is a deficient number, since it is larger than the sum of its proper divisors (42161).

126471 is an equidigital number, since it uses as much as digits as its factorization.

126471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42160.

The product of its digits is 336, while the sum is 21.

The square root of 126471 is about 355.6276142259. The cubic root of 126471 is about 50.1953689585.

The spelling of 126471 in words is "one hundred twenty-six thousand, four hundred seventy-one".