1355131 has 2 divisors, whose sum is σ = 1355132. Its totient is φ = 1355130.

The previous prime is 1355129. The next prime is 1355153. The reversal of 1355131 is 1315531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1355131 - 2¹ = 1355129 is a prime.

It is a super-2 number, since 2×1355131² = 3672760054322, which contains 22 as substring.

Together with 1355129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1355099 and 1355108.

It is not a weakly prime, because it can be changed into another prime (1355191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677565 + 677566.

It is an arithmetic number, because the mean of its divisors is an integer number (677566).

2^1355131 is an apocalyptic number.

1355131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355131 is an equidigital number, since it uses as much as digits as its factorization.

1355131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 225, while the sum is 19.

The square root of 1355131 is about 1164.1009406405. The cubic root of 1355131 is about 110.6607884251.

The spelling of 1355131 in words is "one million, three hundred fifty-five thousand, one hundred thirty-one".