126776500 has 24 divisors (see below), whose sum is σ = 276880968. Its totient is φ = 50710400.

The previous prime is 126776491. The next prime is 126776509. The reversal of 126776500 is 5677621.

It is an interprime number because it is at equal distance from previous prime (126776491) and next prime (126776509).

It can be written as a sum of positive squares in 4 ways, for example, as 753424 + 126023076 = 868^2 + 11226^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126776509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126277 + ... + 127276.

It is an arithmetic number, because the mean of its divisors is an integer number (11536707).

Almost surely, 2^126776500 is an apocalyptic number.

126776500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126776500 is an abundant number, since it is smaller than the sum of its proper divisors (150104468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

126776500 is a wasteful number, since it uses less digits than its factorization.

126776500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253572 (or 253560 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 126776500 is about 11259.5070940073. The cubic root of 126776500 is about 502.3575332697.

The spelling of 126776500 in words is "one hundred twenty-six million, seven hundred seventy-six thousand, five hundred".