126553129 has 24 divisors (see below), whose sum is σ = 142992000. Its totient is φ = 111555360.

The previous prime is 126553111. The next prime is 126553157. The reversal of 126553129 is 921355621.

It is not a de Polignac number, because 126553129 - 2¹³ = 126544937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 126553094 and 126553103.

It is not an unprimeable number, because it can be changed into a prime (126553109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 529392 + ... + 529630.

It is an arithmetic number, because the mean of its divisors is an integer number (5958000).

Almost surely, 2^126553129 is an apocalyptic number.

126553129 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

126553129 is a deficient number, since it is larger than the sum of its proper divisors (16438871).

126553129 is a wasteful number, since it uses less digits than its factorization.

126553129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 318 counting only the distinct ones).

The product of its digits is 16200, while the sum is 34.

The square root of 126553129 is about 11249.5835034014. The cubic root of 126553129 is about 502.0623206386.

The spelling of 126553129 in words is "one hundred twenty-six million, five hundred fifty-three thousand, one hundred twenty-nine".