1355129 has 2 divisors, whose sum is σ = 1355130. Its totient is φ = 1355128.

The previous prime is 1355119. The next prime is 1355131. The reversal of 1355129 is 9215531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 273529 = 1040^2 + 523^2 .

It is a cyclic number.

It is not a de Polignac number, because 1355129 - 2⁴ = 1355113 is a prime.

Together with 1355131, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1355098 and 1355107.

It is not a weakly prime, because it can be changed into another prime (1355119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677564 + 677565.

It is an arithmetic number, because the mean of its divisors is an integer number (677565).

2^1355129 is an apocalyptic number.

It is an amenable number.

1355129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355129 is an equidigital number, since it uses as much as digits as its factorization.

1355129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1350, while the sum is 26.

The square root of 1355129 is about 1164.1000816081. The cubic root of 1355129 is about 110.6607339846.

The spelling of 1355129 in words is "one million, three hundred fifty-five thousand, one hundred twenty-nine".