126785645 has 16 divisors (see below), whose sum is σ = 174890880. Its totient is φ = 86432064.

The previous prime is 126785611. The next prime is 126785647. The reversal of 126785645 is 546587621.

It is a cyclic number.

It is not a de Polignac number, because 126785645 - 2¹² = 126781549 is a prime.

It is a super-3 number, since 3×126785645³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 126785596 and 126785605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126785647) 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, 4415 + ... + 16524.

It is an arithmetic number, because the mean of its divisors is an integer number (10930680).

Almost surely, 2^126785645 is an apocalyptic number.

It is an amenable number.

126785645 is a deficient number, since it is larger than the sum of its proper divisors (48105235).

126785645 is a wasteful number, since it uses less digits than its factorization.

126785645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21124.

The product of its digits is 403200, while the sum is 44.

The square root of 126785645 is about 11259.9131879424. The cubic root of 126785645 is about 502.3696121360.

The spelling of 126785645 in words is "one hundred twenty-six million, seven hundred eighty-five thousand, six hundred forty-five".