1155351403 has 2 divisors, whose sum is σ = 1155351404. Its totient is φ = 1155351402.

The previous prime is 1155351401. The next prime is 1155351413. The reversal of 1155351403 is 3041535511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1155351403 - 2¹ = 1155351401 is a prime.

Together with 1155351401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1155351401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577675701 + 577675702.

It is an arithmetic number, because the mean of its divisors is an integer number (577675702).

Almost surely, 2^1155351403 is an apocalyptic number.

1155351403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155351403 is an equidigital number, since it uses as much as digits as its factorization.

1155351403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1155351403 is about 33990.4604705497. The cubic root of 1155351403 is about 1049.3121429816.

Adding to 1155351403 its reverse (3041535511), we get a palindrome (4196886914).

The spelling of 1155351403 in words is "one billion, one hundred fifty-five million, three hundred fifty-one thousand, four hundred three".