Search a number
-
+
1275812553031 is a prime number
BaseRepresentation
bin10010100100001100010…
…110101010000101000111
311111222002120101211121221
4102210030112222011013
5131400331003144111
62414033350421211
7161113552525312
oct22441426520507
94458076354557
101275812553031
11452083a202a5
12187317061807
139340201a743
1445a6d0b7979
15232c0759371
hex1290c5aa147

1275812553031 has 2 divisors, whose sum is σ = 1275812553032. Its totient is φ = 1275812553030.

The previous prime is 1275812552947. The next prime is 1275812553089. The reversal of 1275812553031 is 1303552185721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1275812553031 - 211 = 1275812550983 is a prime.

It is a super-2 number, since 2×12758125530312 (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 (1275812551031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637906276515 + 637906276516.

It is an arithmetic number, because the mean of its divisors is an integer number (637906276516).

Almost surely, 21275812553031 is an apocalyptic number.

1275812553031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1275812553031 is an equidigital number, since it uses as much as digits as its factorization.

1275812553031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252000, while the sum is 43.

The spelling of 1275812553031 in words is "one trillion, two hundred seventy-five billion, eight hundred twelve million, five hundred fifty-three thousand, thirty-one".