126266290 has 16 divisors (see below), whose sum is σ = 235117080. Its totient is φ = 48764800.

The previous prime is 126266281. The next prime is 126266333. The reversal of 126266290 is 92662621.

It can be written as a sum of positive squares in 4 ways, for example, as 84107241 + 42159049 = 9171^2 + 6493^2 .

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, 217411 + ... + 217990.

Almost surely, 2^126266290 is an apocalyptic number.

126266290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126266290 is a deficient number, since it is larger than the sum of its proper divisors (108850790).

126266290 is a wasteful number, since it uses less digits than its factorization.

126266290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435437.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 126266290 is about 11236.8273992262. The cubic root of 126266290 is about 501.6827172392.

The spelling of 126266290 in words is "one hundred twenty-six million, two hundred sixty-six thousand, two hundred ninety".