126648401 has 6 divisors (see below), whose sum is σ = 139208706. Its totient is φ = 115134800.

The previous prime is 126648377. The next prime is 126648413. The reversal of 126648401 is 104846621.

It can be written as a sum of positive squares in only one way, i.e., 94556176 + 32092225 = 9724^2 + 5665^2 .

It is not a de Polignac number, because 126648401 - 2¹⁰ = 126647377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126648461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 523220 + ... + 523461.

It is an arithmetic number, because the mean of its divisors is an integer number (23201451).

Almost surely, 2^126648401 is an apocalyptic number.

126648401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

126648401 is a deficient number, since it is larger than the sum of its proper divisors (12560305).

126648401 is a wasteful number, since it uses less digits than its factorization.

126648401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1046703 (or 1046692 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 126648401 is about 11253.8171746301. The cubic root of 126648401 is about 502.1882769167.

The spelling of 126648401 in words is "one hundred twenty-six million, six hundred forty-eight thousand, four hundred one".