1234525531387 has 2 divisors, whose sum is σ = 1234525531388. Its totient is φ = 1234525531386.

The previous prime is 1234525531271. The next prime is 1234525531427. The reversal of 1234525531387 is 7831355254321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234525531387 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1234525531387.

It is not a weakly prime, because it can be changed into another prime (1234525534387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617262765693 + 617262765694.

It is an arithmetic number, because the mean of its divisors is an integer number (617262765694).

Almost surely, 2^{1234525531387} is an apocalyptic number.

1234525531387 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234525531387 is an equidigital number, since it uses as much as digits as its factorization.

1234525531387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024000, while the sum is 49.

The spelling of 1234525531387 in words is "one trillion, two hundred thirty-four billion, five hundred twenty-five million, five hundred thirty-one thousand, three hundred eighty-seven".