1296904237 has 2 divisors, whose sum is σ = 1296904238. Its totient is φ = 1296904236.

The previous prime is 1296904183. The next prime is 1296904241. The reversal of 1296904237 is 7324096921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1275132681 + 21771556 = 35709^2 + 4666^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1296904237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1296904193 and 1296904202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1296904267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648452118 + 648452119.

It is an arithmetic number, because the mean of its divisors is an integer number (648452119).

Almost surely, 2^1296904237 is an apocalyptic number.

It is an amenable number.

1296904237 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296904237 is an equidigital number, since it uses as much as digits as its factorization.

1296904237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 1296904237 is about 36012.5566573661. The cubic root of 1296904237 is about 1090.5258627490.

The spelling of 1296904237 in words is "one billion, two hundred ninety-six million, nine hundred four thousand, two hundred thirty-seven".