126621826 has 16 divisors (see below), whose sum is σ = 195497280. Its totient is φ = 61482960.

The previous prime is 126621793. The next prime is 126621827. The reversal of 126621826 is 628126621.

It is a junction number, because it is equal to n+sod(n) for n = 126621791 and 126621800.

It is not an unprimeable number, because it can be changed into a prime (126621827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2860 + ... + 16168.

It is an arithmetic number, because the mean of its divisors is an integer number (12218580).

Almost surely, 2^126621826 is an apocalyptic number.

126621826 is a deficient number, since it is larger than the sum of its proper divisors (68875454).

126621826 is a wasteful number, since it uses less digits than its factorization.

126621826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13449.

The product of its digits is 13824, while the sum is 34.

The square root of 126621826 is about 11252.6364021948. The cubic root of 126621826 is about 502.1531492538.

The spelling of 126621826 in words is "one hundred twenty-six million, six hundred twenty-one thousand, eight hundred twenty-six".