1381531582853 has 2 divisors, whose sum is σ = 1381531582854. Its totient is φ = 1381531582852.

The previous prime is 1381531582831. The next prime is 1381531582877. The reversal of 1381531582853 is 3582851351831.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1095074345764 + 286457237089 = 1046458^2 + 535217^2 .

It is a cyclic number.

It is not a de Polignac number, because 1381531582853 - 2⁸ = 1381531582597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1381531582795 and 1381531582804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1381531582153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690765791426 + 690765791427.

It is an arithmetic number, because the mean of its divisors is an integer number (690765791427).

Almost surely, 2^{1381531582853} is an apocalyptic number.

It is an amenable number.

1381531582853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1381531582853 is an equidigital number, since it uses as much as digits as its factorization.

1381531582853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456000, while the sum is 53.

The spelling of 1381531582853 in words is "one trillion, three hundred eighty-one billion, five hundred thirty-one million, five hundred eighty-two thousand, eight hundred fifty-three".