126401253 has 16 divisors (see below), whose sum is σ = 184069632. Its totient is φ = 76518000.

The previous prime is 126401251. The next prime is 126401263. The reversal of 126401253 is 352104621.

It is not a de Polignac number, because 126401253 - 2¹ = 126401251 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126401251) 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, 37008 + ... + 40278.

It is an arithmetic number, because the mean of its divisors is an integer number (11504352).

Almost surely, 2^126401253 is an apocalyptic number.

It is an amenable number.

126401253 is a deficient number, since it is larger than the sum of its proper divisors (57668379).

126401253 is a wasteful number, since it uses less digits than its factorization.

126401253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4456.

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

The square root of 126401253 is about 11242.8311825803. The cubic root of 126401253 is about 501.8613991208.

Adding to 126401253 its reverse (352104621), we get a palindrome (478505874).

The spelling of 126401253 in words is "one hundred twenty-six million, four hundred one thousand, two hundred fifty-three".