126750505 has 16 divisors (see below), whose sum is σ = 177379200. Its totient is φ = 86913456.

The previous prime is 126750479. The next prime is 126750509. The reversal of 126750505 is 505057621.

It is not a de Polignac number, because 126750505 - 2⁵ = 126750473 is a prime.

It is not an unprimeable number, because it can be changed into a prime (126750509) 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, 35239 + ... + 38668.

It is an arithmetic number, because the mean of its divisors is an integer number (11086200).

Almost surely, 2^126750505 is an apocalyptic number.

It is an amenable number.

126750505 is a deficient number, since it is larger than the sum of its proper divisors (50628695).

126750505 is an frugal number, since it uses more digits than its factorization.

126750505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73933 (or 73919 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 126750505 is about 11258.3526770127. The cubic root of 126750505 is about 502.3231954738.

The spelling of 126750505 in words is "one hundred twenty-six million, seven hundred fifty thousand, five hundred five".