126520 has 16 divisors (see below), whose sum is σ = 284760. Its totient is φ = 50592.

The previous prime is 126517. The next prime is 126541. The reversal of 126520 is 25621.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 126494 and 126503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1542 + ... + 1621.

2¹²⁶⁵²⁰ is an apocalyptic number.

126520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126520 is an abundant number, since it is smaller than the sum of its proper divisors (158240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126520 is a wasteful number, since it uses less digits than its factorization.

126520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3174 (or 3170 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 126520 is about 355.6964998422. The cubic root of 126520 is about 50.2018506960.

It can be divided in two parts, 126 and 520, that added together give a palindrome (646).

The spelling of 126520 in words is "one hundred twenty-six thousand, five hundred twenty".