126660510 has 40 divisors (see below), whose sum is σ = 340578216. Its totient is φ = 33775920.

The previous prime is 126660503. The next prime is 126660511. The reversal of 126660510 is 15066621.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126660511) 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 in 19 ways as a sum of consecutive naturals, for example, 77376 + ... + 78995.

Almost surely, 2^126660510 is an apocalyptic number.

126660510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126660510 is an abundant number, since it is smaller than the sum of its proper divisors (213917706).

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

126660510 is a wasteful number, since it uses less digits than its factorization.

126660510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156390 (or 156381 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 126660510 is about 11254.3551570048. The cubic root of 126660510 is about 502.2042813405.

It can be divided in two parts, 1266 and 60510, that added together give a triangular number (61776 = T₃₅₁).

The spelling of 126660510 in words is "one hundred twenty-six million, six hundred sixty thousand, five hundred ten".