126290 has 16 divisors (see below), whose sum is σ = 231768. Its totient is φ = 49536.

The previous prime is 126271. The next prime is 126307. The reversal of 126290 is 92621.

126290 is nontrivially palindromic in base 3 and base 9.

It can be written as a sum of positive squares in 4 ways, for example, as 121801 + 4489 = 349^2 + 67^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 644 + ... + 816.

2¹²⁶²⁹⁰ is an apocalyptic number.

126290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126290 is a deficient number, since it is larger than the sum of its proper divisors (105478).

126290 is a wasteful number, since it uses less digits than its factorization.

126290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 126290 is about 355.3730434346. The cubic root of 126290 is about 50.1714116891.

The spelling of 126290 in words is "one hundred twenty-six thousand, two hundred ninety".