126613307 has 4 divisors (see below), whose sum is σ = 126902160. Its totient is φ = 126324456.

The previous prime is 126613231. The next prime is 126613309. The reversal of 126613307 is 703316621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126613307 - 2¹⁴ = 126596923 is a prime.

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 126613307.

It is not an unprimeable number, because it can be changed into a prime (126613309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143768 + ... + 144645.

It is an arithmetic number, because the mean of its divisors is an integer number (31725540).

Almost surely, 2^126613307 is an apocalyptic number.

126613307 is a deficient number, since it is larger than the sum of its proper divisors (288853).

126613307 is an equidigital number, since it uses as much as digits as its factorization.

126613307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288852.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 126613307 is about 11252.2578623137. The cubic root of 126613307 is about 502.1418875339.

Adding to 126613307 its reverse (703316621), we get a palindrome (829929928).

The spelling of 126613307 in words is "one hundred twenty-six million, six hundred thirteen thousand, three hundred seven".