126665275 has 24 divisors (see below), whose sum is σ = 172002384. Its totient is φ = 91766400.

The previous prime is 126665263. The next prime is 126665281. The reversal of 126665275 is 572566621.

It is a de Polignac number, because none of the positive numbers 2^k-126665275 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86449 + ... + 87901.

It is an arithmetic number, because the mean of its divisors is an integer number (7166766).

Almost surely, 2^126665275 is an apocalyptic number.

126665275 is a deficient number, since it is larger than the sum of its proper divisors (45337109).

126665275 is a wasteful number, since it uses less digits than its factorization.

126665275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1791 (or 1786 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 126665275 is about 11254.5668508388. The cubic root of 126665275 is about 502.2105789450.

The spelling of 126665275 in words is "one hundred twenty-six million, six hundred sixty-five thousand, two hundred seventy-five".