127146138787 has 2 divisors, whose sum is σ = 127146138788. Its totient is φ = 127146138786.

The previous prime is 127146138781. The next prime is 127146138827. The reversal of 127146138787 is 787831641721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127146138787 - 2¹¹ = 127146136739 is a prime.

It is a super-2 number, since 2×127146138787² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127146138781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63573069393 + 63573069394.

It is an arithmetic number, because the mean of its divisors is an integer number (63573069394).

Almost surely, 2^127146138787 is an apocalyptic number.

127146138787 is a deficient number, since it is larger than the sum of its proper divisors (1).

127146138787 is an equidigital number, since it uses as much as digits as its factorization.

127146138787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3161088, while the sum is 55.

The spelling of 127146138787 in words is "one hundred twenty-seven billion, one hundred forty-six million, one hundred thirty-eight thousand, seven hundred eighty-seven".