126874529 has 2 divisors, whose sum is σ = 126874530. Its totient is φ = 126874528.

The previous prime is 126874523. The next prime is 126874577. The reversal of 126874529 is 925478621.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125776225 + 1098304 = 11215^2 + 1048^2 .

It is an emirp because it is prime and its reverse (925478621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126874529 - 2⁴ = 126874513 is a prime.

It is a super-2 number, since 2×126874529² = 32194292217943682, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 126874529.

It is not a weakly prime, because it can be changed into another prime (126874523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63437264 + 63437265.

It is an arithmetic number, because the mean of its divisors is an integer number (63437265).

Almost surely, 2^126874529 is an apocalyptic number.

It is an amenable number.

126874529 is a deficient number, since it is larger than the sum of its proper divisors (1).

126874529 is an equidigital number, since it uses as much as digits as its factorization.

126874529 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 126874529 is about 11263.8594185119. The cubic root of 126874529 is about 502.4869813381.

Subtracting from 126874529 its sum of digits (44), we obtain a triangular number (126874485 = T₁₅₉₂₉).

The spelling of 126874529 in words is "one hundred twenty-six million, eight hundred seventy-four thousand, five hundred twenty-nine".