1230136289527 has 2 divisors, whose sum is σ = 1230136289528. Its totient is φ = 1230136289526.

The previous prime is 1230136289507. The next prime is 1230136289561. The reversal of 1230136289527 is 7259826310321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230136289527 is a prime.

It is a super-2 number, since 2×1230136289527² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230136289507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615068144763 + 615068144764.

It is an arithmetic number, because the mean of its divisors is an integer number (615068144764).

Almost surely, 2^{1230136289527} is an apocalyptic number.

1230136289527 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230136289527 is an equidigital number, since it uses as much as digits as its factorization.

1230136289527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 1230136289527 in words is "one trillion, two hundred thirty billion, one hundred thirty-six million, two hundred eighty-nine thousand, five hundred twenty-seven".