126621354 has 8 divisors (see below), whose sum is σ = 253242720. Its totient is φ = 42207116.

The previous prime is 126621353. The next prime is 126621379. The reversal of 126621354 is 453126621.

It is a sphenic number, since it is the product of 3 distinct primes.

126621354 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126621353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10551774 + ... + 10551785.

It is an arithmetic number, because the mean of its divisors is an integer number (31655340).

Almost surely, 2^126621354 is an apocalyptic number.

126621354 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

126621354 is a wasteful number, since it uses less digits than its factorization.

126621354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21103564.

The product of its digits is 8640, while the sum is 30.

The square root of 126621354 is about 11252.6154293124. The cubic root of 126621354 is about 502.1525253050.

Adding to 126621354 its reverse (453126621), we get a palindrome (579747975).

The spelling of 126621354 in words is "one hundred twenty-six million, six hundred twenty-one thousand, three hundred fifty-four".