126421053 has 16 divisors (see below), whose sum is σ = 184699200. Its totient is φ = 76279680.

The previous prime is 126421049. The next prime is 126421073. The reversal of 126421053 is 350124621.

It is not a de Polignac number, because 126421053 - 2² = 126421049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126421073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 808 + ... + 15921.

It is an arithmetic number, because the mean of its divisors is an integer number (11543700).

Almost surely, 2^126421053 is an apocalyptic number.

It is an amenable number.

126421053 is a deficient number, since it is larger than the sum of its proper divisors (58278147).

126421053 is a wasteful number, since it uses less digits than its factorization.

126421053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16972.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 126421053 is about 11243.7117092177. The cubic root of 126421053 is about 501.8876022811.

Adding to 126421053 its reverse (350124621), we get a palindrome (476545674).

It can be divided in two parts, 12642 and 1053, that added together give a triangular number (13695 = T₁₆₅).

The spelling of 126421053 in words is "one hundred twenty-six million, four hundred twenty-one thousand, fifty-three".