126066981 has 16 divisors (see below), whose sum is σ = 170354304. Its totient is φ = 82919424.

The previous prime is 126066949. The next prime is 126067001. The reversal of 126066981 is 189660621.

It is not a de Polignac number, because 126066981 - 2⁵ = 126066949 is a prime.

It is a super-2 number, since 2×126066981² = 31785767396908722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126066901) 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, 86400 + ... + 87846.

It is an arithmetic number, because the mean of its divisors is an integer number (10647144).

Almost surely, 2^126066981 is an apocalyptic number.

It is an amenable number.

126066981 is a deficient number, since it is larger than the sum of its proper divisors (44287323).

126066981 is a wasteful number, since it uses less digits than its factorization.

126066981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 126066981 is about 11227.9553347883. The cubic root of 126066981 is about 501.4186126034.

The spelling of 126066981 in words is "one hundred twenty-six million, sixty-six thousand, nine hundred eighty-one".