1298425955 has 4 divisors (see below), whose sum is σ = 1558111152. Its totient is φ = 1038740760.

The previous prime is 1298425943. The next prime is 1298425963. The reversal of 1298425955 is 5595248921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1298425955 - 2⁴ = 1298425939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129842591 + ... + 129842600.

It is an arithmetic number, because the mean of its divisors is an integer number (389527788).

Almost surely, 2^1298425955 is an apocalyptic number.

1298425955 is a deficient number, since it is larger than the sum of its proper divisors (259685197).

1298425955 is an equidigital number, since it uses as much as digits as its factorization.

1298425955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259685196.

The product of its digits is 1296000, while the sum is 50.

The square root of 1298425955 is about 36033.6780664977. The cubic root of 1298425955 is about 1090.9522175932.

The spelling of 1298425955 in words is "one billion, two hundred ninety-eight million, four hundred twenty-five thousand, nine hundred fifty-five".