1355025431 has 2 divisors, whose sum is σ = 1355025432. Its totient is φ = 1355025430.

The previous prime is 1355025421. The next prime is 1355025457. The reversal of 1355025431 is 1345205531.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355025431 is a prime.

It is a super-2 number, since 2×1355025431² = 3672187837313471522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1355025394 and 1355025403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1355025421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677512715 + 677512716.

It is an arithmetic number, because the mean of its divisors is an integer number (677512716).

Almost surely, 2^1355025431 is an apocalyptic number.

1355025431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355025431 is an equidigital number, since it uses as much as digits as its factorization.

1355025431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 1355025431 is about 36810.6700699675. The cubic root of 1355025431 is about 1106.5791474171.

The spelling of 1355025431 in words is "one billion, three hundred fifty-five million, twenty-five thousand, four hundred thirty-one".