1154355011 has 2 divisors, whose sum is σ = 1154355012. Its totient is φ = 1154355010.

The previous prime is 1154354989. The next prime is 1154355023. The reversal of 1154355011 is 1105534511.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1154355011 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1154355061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577177505 + 577177506.

It is an arithmetic number, because the mean of its divisors is an integer number (577177506).

Almost surely, 2^1154355011 is an apocalyptic number.

1154355011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1154355011 is an equidigital number, since it uses as much as digits as its factorization.

1154355011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1500, while the sum is 26.

The square root of 1154355011 is about 33975.8003732068. The cubic root of 1154355011 is about 1049.0104088295.

Adding to 1154355011 its reverse (1105534511), we get a palindrome (2259889522).

The spelling of 1154355011 in words is "one billion, one hundred fifty-four million, three hundred fifty-five thousand, eleven".