126011765 has 16 divisors (see below), whose sum is σ = 166064256. Its totient is φ = 91032000.

The previous prime is 126011749. The next prime is 126011771. The reversal of 126011765 is 567110621.

It is not a de Polignac number, because 126011765 - 2⁴ = 126011749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 719 + ... + 15891.

It is an arithmetic number, because the mean of its divisors is an integer number (10379016).

Almost surely, 2^126011765 is an apocalyptic number.

It is an amenable number.

126011765 is a deficient number, since it is larger than the sum of its proper divisors (40052491).

126011765 is a wasteful number, since it uses less digits than its factorization.

126011765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15340.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 126011765 is about 11225.4962028411. The cubic root of 126011765 is about 501.3453965691.

The spelling of 126011765 in words is "one hundred twenty-six million, eleven thousand, seven hundred sixty-five".