126871425 has 72 divisors (see below), whose sum is σ = 246781080. Its totient is φ = 62054400.

The previous prime is 126871421. The next prime is 126871469. The reversal of 126871425 is 524178621.

It can be written as a sum of positive squares in 12 ways, for example, as 24295041 + 102576384 = 4929^2 + 10128^2 .

It is not a de Polignac number, because 126871425 - 2² = 126871421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126871425.

It is not an unprimeable number, because it can be changed into a prime (126871421) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 156421 + ... + 157229.

It is an arithmetic number, because the mean of its divisors is an integer number (3427515).

Almost surely, 2^126871425 is an apocalyptic number.

126871425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

126871425 is a deficient number, since it is larger than the sum of its proper divisors (119909655).

126871425 is a wasteful number, since it uses less digits than its factorization.

126871425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883 (or 875 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 126871425 is about 11263.7216318586. The cubic root of 126871425 is about 502.4828835040.

The spelling of 126871425 in words is "one hundred twenty-six million, eight hundred seventy-one thousand, four hundred twenty-five".