1335157891 has 2 divisors, whose sum is σ = 1335157892. Its totient is φ = 1335157890.

The previous prime is 1335157793. The next prime is 1335157897. The reversal of 1335157891 is 1987515331.

It is a strong prime.

It is an emirp because it is prime and its reverse (1987515331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1335157891 - 2⁷ = 1335157763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1335157897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667578945 + 667578946.

It is an arithmetic number, because the mean of its divisors is an integer number (667578946).

Almost surely, 2^1335157891 is an apocalyptic number.

1335157891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1335157891 is an equidigital number, since it uses as much as digits as its factorization.

1335157891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113400, while the sum is 43.

The square root of 1335157891 is about 36539.8124105749. The cubic root of 1335157891 is about 1101.1442338587.

The spelling of 1335157891 in words is "one billion, three hundred thirty-five million, one hundred fifty-seven thousand, eight hundred ninety-one".