126730697 has 4 divisors (see below), whose sum is σ = 130818816. Its totient is φ = 122642580.

The previous prime is 126730679. The next prime is 126730717. The reversal of 126730697 is 796037621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 126730697 - 2⁸ = 126730441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126730607) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2044013 + ... + 2044074.

It is an arithmetic number, because the mean of its divisors is an integer number (32704704).

Almost surely, 2^126730697 is an apocalyptic number.

It is an amenable number.

126730697 is a deficient number, since it is larger than the sum of its proper divisors (4088119).

126730697 is an equidigital number, since it uses as much as digits as its factorization.

126730697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4088118.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 126730697 is about 11257.4729402295. The cubic root of 126730697 is about 502.2970271725.

The spelling of 126730697 in words is "one hundred twenty-six million, seven hundred thirty thousand, six hundred ninety-seven".