1225235353987 has 2 divisors, whose sum is σ = 1225235353988. Its totient is φ = 1225235353986.

The previous prime is 1225235353949. The next prime is 1225235354023. The reversal of 1225235353987 is 7893535325221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1225235353987 - 2²³ = 1225226965379 is a prime.

It is not a weakly prime, because it can be changed into another prime (1225235353907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612617676993 + 612617676994.

It is an arithmetic number, because the mean of its divisors is an integer number (612617676994).

Almost surely, 2^{1225235353987} is an apocalyptic number.

1225235353987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225235353987 is an equidigital number, since it uses as much as digits as its factorization.

1225235353987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608000, while the sum is 55.

The spelling of 1225235353987 in words is "one trillion, two hundred twenty-five billion, two hundred thirty-five million, three hundred fifty-three thousand, nine hundred eighty-seven".