1295798951 has 2 divisors, whose sum is σ = 1295798952. Its totient is φ = 1295798950.

The previous prime is 1295798899. The next prime is 1295798953. The reversal of 1295798951 is 1598975921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1295798951 is a prime.

Together with 1295798953, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1295798953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 647899475 + 647899476.

It is an arithmetic number, because the mean of its divisors is an integer number (647899476).

Almost surely, 2^1295798951 is an apocalyptic number.

1295798951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1295798951 is an equidigital number, since it uses as much as digits as its factorization.

1295798951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2041200, while the sum is 56.

The square root of 1295798951 is about 35997.2075444749. The cubic root of 1295798951 is about 1090.2159746544.

The spelling of 1295798951 in words is "one billion, two hundred ninety-five million, seven hundred ninety-eight thousand, nine hundred fifty-one".