1297107626 has 8 divisors (see below), whose sum is σ = 1947944964. Its totient is φ = 647792640.

The previous prime is 1297107619. The next prime is 1297107629. The reversal of 1297107626 is 6267017921.

It can be written as a sum of positive squares in 2 ways, for example, as 905107225 + 392000401 = 30085^2 + 19799^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1297107629) 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, 378455 + ... + 381866.

Almost surely, 2^1297107626 is an apocalyptic number.

1297107626 is a deficient number, since it is larger than the sum of its proper divisors (650837338).

1297107626 is an equidigital number, since it uses as much as digits as its factorization.

1297107626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761176.

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 1297107626 is about 36015.3804089308. The cubic root of 1297107626 is about 1090.5828675672.

The spelling of 1297107626 in words is "one billion, two hundred ninety-seven million, one hundred seven thousand, six hundred twenty-six".