107066521 has 4 divisors (see below), whose sum is σ = 110758500. Its totient is φ = 103374544.

The previous prime is 107066513. The next prime is 107066549. The reversal of 107066521 is 125660701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 125660701 = 31 ⋅4053571.

It can be written as a sum of positive squares in 2 ways, for example, as 87609600 + 19456921 = 9360^2 + 4411^2 .

It is a cyclic number.

It is not a de Polignac number, because 107066521 - 2³ = 107066513 is a prime.

It is a super-2 number, since 2×107066521² = 22926479838086882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 107066521.

It is not an unprimeable number, because it can be changed into a prime (107066551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1845946 + ... + 1846003.

It is an arithmetic number, because the mean of its divisors is an integer number (27689625).

Almost surely, 2^107066521 is an apocalyptic number.

It is an amenable number.

107066521 is a deficient number, since it is larger than the sum of its proper divisors (3691979).

107066521 is an equidigital number, since it uses as much as digits as its factorization.

107066521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3691978.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 107066521 is about 10347.2953470943. The cubic root of 107066521 is about 474.8443013242.

The spelling of 107066521 in words is "one hundred seven million, sixty-six thousand, five hundred twenty-one".