126913307 has 4 divisors (see below), whose sum is σ = 129064440. Its totient is φ = 124762176.

The previous prime is 126913291. The next prime is 126913361. The reversal of 126913307 is 703319621.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 703319621 = 18131 ⋅38791.

It is a cyclic number.

It is not a de Polignac number, because 126913307 - 2⁴ = 126913291 is a prime.

It is a super-2 number, since 2×126913307² = 32213974987352498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126913607) 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, 1075478 + ... + 1075595.

It is an arithmetic number, because the mean of its divisors is an integer number (32266110).

Almost surely, 2^126913307 is an apocalyptic number.

126913307 is a deficient number, since it is larger than the sum of its proper divisors (2151133).

126913307 is an equidigital number, since it uses as much as digits as its factorization.

126913307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151132.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 126913307 is about 11265.5806330610. The cubic root of 126913307 is about 502.5381695881.

The spelling of 126913307 in words is "one hundred twenty-six million, nine hundred thirteen thousand, three hundred seven".